Adjusting valves on a chevy 350

This is the valve adjustment method most of the racers I worked with used - first write the first half of the firing order over the second half. This example is for chev and chrys V8s. 1843 6572 Rotate engine - watch #6 rockers - when exhaust is closing and intake just starts to open (overlap) adjust both valves on #1.

The thought of having to live with mitral valve prolapse, a condition marked by heart problems and subsequent fatigue symptoms, sounds scary, but the truth is, it can be quite bear...valve adjustment for 250 inline 6 cylinder GM 73 chevy c10. Answered in 1 hour by: Chevy Mechanic: AutoDoc. Hello, From GM service manual: HYDRAULIC LIFTER ADJUSTMENT. Rotate engine until ignition rotor is at #1. Adjust INTAKE valves 1, 2, and 4 and EXHAUST valves 1, 3, and 5 by: Backing off rocker arm nut until lash is felt, then tighten nut ...I've heard a few mechanics talking about setting hydraulic lifters on chevy 350 while the engine is running. ... There's no great secret to adjusting valves, the only problem you can create is adjusting them too much (the valves will stay open). Get the pushrod snug btw the lifter and the rocker and give it another 1/2 turn, that's plenty ...3. Use a feeler gauge, set to the correct valve lash, and place it between the tip of the valve stem and rocker arm. Adjust until you arrive at the proper setting and lock the adjuster in place. 4. After the intake valve has been adjusted, continue to rotate the engine, watching that same intake valve.A. Starting with #1 cylinder, turn the engine over until the exhaust pushrod just begins to move up. B. At this point, stop and adjust the intake valve on the same cylinder. 1) Tighten the rocker until you can roll the pushrod between your thumb and forefinger with the slightest bit of resistance. 2) At this point tighten between an additional ...Just form it around all of the rocker arms and make sure oil drips into the head and not down the side of the motor, leave a gap in the middle for the socket to the nut. Even better but takes 3-5 minutes more is an old cover with 1 inch holes where the nuts are. swap covers, adjust put good cover back on. Street Rod Pix.Rotate the engine by hand with the valve covers off. Watch the valves move up and down. Start out with number 1 cylinder and when the exhaust valve is at its fullest stroke adjust the intake valve and remember to only snug it and don't over tighten it. Then do the same with the intake valve. Do this on each cylinder.

with no lift at cam. remove "play" in the pushrod vertically. just til it has tension while trying to spin it between you thumb and index finger. then turn another 3/4 turn. repeat 15 more times ...That is when you want to set the intake. To set the intake, back off the poly lock or adjustment nut until you know there is clearance. Then slowly tighten the nut until you can feel a slight ...The following valves can now be adjusted: V8: Exhaust 2, 5, 6, 7 V8: Intake 3, 4, 6, 8 V6: Exhaust 2, 3, 4 V6: Intake 4, 5, 6 Adjusting Valves on Chevy 350 Small Block This information can be ...with no lift at cam. remove "play" in the pushrod vertically. just til it has tension while trying to spin it between you thumb and index finger. then turn another 3/4 turn. repeat 15 more times ...Step 1. Remove the wing nut on top of the air cleaner and lift the air cleaner off the throttle body to access the vacuum lines. These are attached to the bottom of the air cleaner. Twist and pull the vacuum off of the bottom of the air cleaner and lay the air cleaner aside. Plug the vacuum lines with golf tees or other suitable item.These are usually 0.050 or 0.080 inch, and if the budget allows use of pushrods 0.050- to .060-inch shorter for cams up to 0.500- or .525-inch lift. Pushrods as much as .10-inch shorter may be needed for cams lifting to .60-inch, but valvetrains in this category are moving well out of the budget class.The 1989 Chevrolet 350 small-block engine is a V8 that produced a peak power of 240 horsepower and 340 foot-pounds of torque in its most common installation trim in the Chevrolet C...The Chevy 350, SBC, and BBC engines all use the same firing order. This firing order is -1 (first spark), 0 (second spark), +2 (third spark), +1 (fourth spark), -2 (fifth spark), -1 (sixth spark). The firing order of the distributor cap is the same, except that it's set up so that it fires in the opposite direction.

I like the first method just make sure you are adjusting the correct valves. 68 RS Coupe 355/350 TH, Detroit Speed, Hotchkis, Vintage Air, 8.5" 3.42 posi 10-bolt, MagnaFlow 2 1/2" exhaust, etc. "The public cannot be too curious concerning the characters of public men."Valve Adjustment Procedure for Small and Big Block Chevy. After the engine has been thoroughly warmed up the valves may be adjusted with the engine shut of as follows: …A cold engine is a lot more comfortable to work on. Major camshaft manufacturers recommend setting valves cold, to avoid erroneous adjustments on lifters that may be "pumped up" If you are setting valves on a fresh engine that has not been run, everything should be well lubricated before you begin. 2. Remove both valve covers and remove the ...Step 2: Locate the throttle linkage. Before you can make any adjustments, you will need to locate the throttle valve adjustment location and the throttle linkage. Pop the hood and look for the intake piping. Follow the piping to the intake itself. You will find a series of linkages and cables mounted on the intake.Jan 31, 2010 · Valve adjustment on 1997 350 vortec suburban. I have spent 3 weekends on trying to adjust the valves on my 1997 suburban 350 vortec. I have adjusted them 4 times with going to TDC #1 and adjusting the approprite valves. Then another 360 degrees with #6 at TDC and adjusting those valves. I removed the cap to make sure it is at the appropriate ... Start by making sure lifter is on low step of camshaft- valve completely closed. Tighten nut on rocker arm while spinning pushrods with 2 fingers. When pushrods stops spinning while tightening rocker arm nut go ahead and tighten down another 1/2 to 3/4 turns. Vale is adjusted. Continue on and do all the valves this way.

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Scotty Kilmer, mechanic for the last 45 years, shows how you can adjust ticking valves on your vehicle's engine. It just requires simple hand tools and a lit...Turn the wrench an additional 1/8 – 1/2 turn to set the plunger depth to the proper lifter preload. (see information above) Continue (repeat) this procedure on each of the remaining the valves. Turn off the engine. Remove the oil splash prevention apparatus and re-install the valve cover.Here I look for Top dead center TDC to check valves on an engine. I turn the engine around through the compression stroke and until exhaust stroke is at top ...Remove dist cap and crank engine until rotor points to no. 1 cyl with the points open. 2. turn rocker adjusting screw until all lash is removed from both lifters to valve. This can be determined by checking push rod side play at the adjusting screw end while turning the adjusting screw. When no more side play is felt, continue turning screw 1 1 ...

Turn crankshaft one complete revolution, which will bring engine in position to fire cylinders 4 (V6) or 6 (Inline 6 and V8). With engine in this position, adjust the following valves: V6-229 and 262, Exhaust Nos. 2, 3 and 4; Intake Nos. 4, 5 and 6. 6-250 and 292, Exhaust Nos. 2, 4 and 6; Intake Nos. 3, 5 and 6.Valve Lash. Turn the adjustment nuts down one full turn. That centers the plunger and keeps the geometry correct. Hydraulic lifters are really very simple. The lifter body has an inlet and outlet hole that oil flows into (and out of) and a check valve under the plunger. Because the oil under the plunger oil is virtually uncompressable, the ...A cold engine is a lot more comfortable to work on. Major camshaft manufacturers recommend setting valves cold, to avoid erroneous adjustments on lifters that may be "pumped up" If you are setting valves on a fresh engine that has not been run, everything should be well lubricated before you begin. 2. Remove both valve covers and remove the ...4,745. May 7, 2009. #14. Re: Timing and Adjusting Roller Rockers 350 SB 5.7. Ok, Now listen close the small block V8 has both cyl #1, & cyl #6, at top dead center at the same time, when the crank timing mark is at TDC. The camshaft determines which one is going to fire at that time. You must adjust your valves first!Subject: Chevy TH-350 shift points Date: Mon, 04 Apr 94 17:52:13 GMT Jon Warwick wrote: ... So at 20 MPH you may have 15-20 PSI of governor pressure pushing on the end of the shift valve. On the other side of that shift valve is a spring designed to oppose that force. In addition there is also modulator pressure directed to the "back' side …In this video, Ryan shows you how to install push rods and rocker arms and how to set valve lash on a Chevy 350. He rebuilt this small block Chevy 350 which ...Steve Morris Engines’ Twin-Supercharged 454 Big Block Chevy Engine It had been 26 years since the last time Val Morris, Steve Morris’ wife, was behind the wheel of a drag car. The shop had been working on this project car named Sugar Momma, and got it done in time for Sick Week 2024.Too easy. - wah and dry bike, especially under tankard other places dirt can fall from into engine. - let cool overnight. Must be done with engine cold, ambient temp. - Remove valve cover. DO NOT over tighten when you put it back on, you'll pull the threads out of the cam caps. Torque gently.Remove valve covers; start engine; loosen each until it clatters, then tighten it just until it stops; go through all 16 as quick as you can to minimize the mess. Shut engine off; add your desired preload (could be anywhere from ¼ turn to a full turn, with most people using about ½ turn most of the time); reinstall valve covers; enjoy. Like.Adjust both #1 intake & exhaust valves by backing them off & then turning the nut until you remove the play in the rocker. Add 1/4 to 1/2 turn to the nut. Rotate the engine 90 degrees (1/4 turn) & adjust #8 cylinder, 90 degrees & #4 right down the firing order. When you get back to #1 again you are done.Remove the engine cover from the passenger compartment for access. Remove the rocker arm covers. For details, please refer to Section 3 of this manual. To prepare the engine for valve adjustment, rotate the crankshaft until the mark on the damper pulley aligns with the 0° mark on the timing plate and the No. 1 cylinder is on the compression ...Here is a detailed guide on how to adjust valves on a 350 Chevy: Take off the valve covers before carrying out the valve adjustment. Once the cover is off, choose a cylinder you are going to work on. To adjust the intake valve, use your hands to rotate the engine. At the same time, keep your eyes on the exhaust valve of the cylinder.

Jun 2, 2020 · A Quick How to for Adjusting your Small block 350 Valves into spec! This information can be used for other Push rod/ Hydraulic tappet lifter setups too!

1. Remove the valve covers, and pick a cylinder you are going to set the preload on. 2. Hand rotate the engine in its normal direction of rotation and watch the exhaust valve on that particular cylinder.When the exhaust valve begins to open, stop and adjust that cylinder's intake rocker arm.Spin the engine one full rotation, so that the No. 6 cylinder is at top dead center on the compression stroke. Then, you may adjust the exhaust valves for cylinders 2, 5, 6 and 7. Finally, adjust ...A compression test is one way to check if the valves need adjustment. Another method is to listen for abnormal valve noises. Adjusting valves on a chevy 350 involves removing the valve cover, rotating the engine to top dead center, and adjusting the rocker arms. With the right tools and knowledge, adjusting the valves on a chevy 350 can be done ...How to set Valve Lash on a Solid Lifter Race EngineSUBSCRIBE CGBG Project Vehicles, Restoration and How-To! http://www.youtube.com/user/[email protected] this video, Ryan shows you how to install push rods and rocker arms and how to set valve lash on a Chevy 350. He rebuilt this small block Chevy 350 which ...For small to mid-range horsepower engines, you will want to go with 1 ½ to 1 ¾ inch pipe; for anything over 600 horses, you need to go with 1 ¾ to 2-inch exhaust pipe. If the. classic muscle ...Blood flows out of your heart and into a large blood vessel called the aorta. The aortic valve separates the heart and aorta. The aortic valve opens so blood can flow out. It then ...Repair guidesChevy block small valves adjust Chevy block big heads lash valves adjusted set straightWhat is the correct procedure for setting the valves on a chevy 350. Chevy valve adjustmentValve adjustment 350 chevy engine torque rocker lash adjust 1994 truck adjusting remove warm cover Chevy small block valve adjustmentChevy 350 timing marks ...

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EO/IC stands for exhaust opening/intake closing. When the exhaust valve starts to open, adjust the lash on that cylinder's intake valve. Next, when the intake valve is fully open, and the rocker tip is at the bottom of its travel, turn the engine over until the valve is about 2/3 of the way closed. Stop and adjust the exhaust valve on that ...Checking and adjusting the valves on a Chevy 350 engine is an important part of regular maintenance to ensure proper engine performance and longevity. Here’s a step-by-step guide on how to do it: Tools and Materials You’ll Need: Ratchet and socket set. Feeler gauges. Valve cover gaskets (if needed) Torque wrench. A small hand mirror (optional)This method works for any engine with hydraulic lifters. Solid lifters takes a longer process. Timelapse music: Beej - https://www.youtube.com/channel/UCox7b...Jan 31, 2010 · Valve adjustment on 1997 350 vortec suburban. I have spent 3 weekends on trying to adjust the valves on my 1997 suburban 350 vortec. I have adjusted them 4 times with going to TDC #1 and adjusting the approprite valves. Then another 360 degrees with #6 at TDC and adjusting those valves. I removed the cap to make sure it is at the appropriate ... Without the cam info, its gonna be hard to get the proper lash. 74 Nova Project 350 currently under constuction. 98 Z28 All original (Wifes' Car)Tweet. #6. March 2, 2010, 09:00 AM. Re: Lashing the valves on '99 350 vortec. Turn the valve rocker arm nuts clockwise until all of the valve lash is removed. Turn the crankshaft clockwise until the alignment mark on the crankshaft balancer is aligned with the notch in the engine front cover tab. Look at the number 1 cylinder valves as the ...Nov 9, 2020 · This is the procedure on how to set valve lash on a Chevy 350 engine. This procedure is similar to most Chevy small block engines and could be used for gener... Use an assembly lube or lubriplate 105. The rocker arms (all of them) should already be torqued to the proper setting. While at TDC on #1 cil, use this order-. Intake, 1, 2, 3. Exhaust, 1, 5, 6. Spin the push rod back & forth with your finger till it stops spinning or, you see the lifter plunger just start to depress. ….

This method works for any engine with hydraulic lifters. Solid lifters takes a longer process. Timelapse music: Beej - https://www.youtube.com/channel/UCox7b...Aug 15, 2014 ... Demonstration of lifter plunger pre-load and why the Chevy manual method works.There really is no way to complete the adjustment on the engine stand because the lifters are not pumped up. Just tighten them until the pushrods wont come flying out. Then after engine is running back each one off until it clatters . then tighten just until noise stops barely. Then tighten each one 1/4 turn. then each one another 1/4 turn …To do this in the ‘non running’ state, such as just after assembly, rotate the engine by hand until each cylinder is at top of it’s stroke, which will assure both valves are fully closed. Then back off the adjusting nut until the rocker is loose. Now re-tighten the nut just until all looseness is removed, and then tighten an additional 3/ ...Firing @ #1, You can now adjust the following valves: INTAKE on cylinders 1,2,5,7. EXHAUST on cylinders 1,3,4,8. Loosen the adjusting nut until lash is felt by rotating the pushrod. Then. tighten the adjusting nut while rotating the pushrod until all lash is. removed. Now tighten the adjusting nut 1/2 full turn.To correctly adjust these lifters follow the procedure below. 1. Remove the rocker arm cover. 2. Crank the engine until the mark on the vibration damper lines up with the center or "O" mark on the timing tab, and the engine is in the number one firing position. This may be determined by placing fingers on the number one valve as the mark on the ...Find CHEVROLET 5.7L/350 Valves and get Free Shipping on Orders Over $109 at Summit Racing! Free Mount & Balance for Many Wheel & Tire Packages - Contact us for Details! ... Summit Racing™ Race Valves for Chevrolet SUM-V8010-8 Valves, Exhaust, Stainless Steel, 1.600 in. Diameter, .341 in. Stem, 4.911 in. Length, Chevy, Set of 8.T's Garage. 384 subscribers. Subscribed. 600. 76K views 3 years ago. This is the procedure on how to set valve lash on a Chevy 350 engine. This procedure is …Yeah that cable is kickdown only on a 350 turbo. On the 200r4 and 700r4 it's the throttle valve cable. Improper adjustment of a tv cable will destroy the transmission. Your cable is like stated above, the button releases the adjustment, push it back, release the button, open the throttle fully and it will self adjust.Measure and adjust the clearence when the rocker arm pad is on the bottom of the cam. Check the clearances of numbers 1, 2, 3 and 5 valves by inserting the blade or blades of a feeler gauge between the rocker and valve stem. The clearance is correct when the gauge is a close sliding fit between the two parts. Adjusting valves on a chevy 350, bigbadbowtie. 1. Remove the valve covers, and pick a cylinder you are going to set the preload on. 2. Hand rotate the engine in its normal direction of rotation and watch the exhaust valve on that particular cylinder. When the exhaust valve begins to open, stop and adjust that cylinder’s intake rocker arm., I followed the GM book to the letter as far as removing valve lash in the order specified then turning the rocker arm nut 1 full turn. When I put it all together I had 0 compression in all cylinders except 6. After removing the valve covers, I noticed that the valve adjustment was too tight and luckily did not bend any rods, or destroy any valves!, Start by making sure lifter is on low step of camshaft- valve completely closed. Tighten nut on rocker arm while spinning pushrods with 2 fingers. When pushrods stops spinning while tightening rocker arm nut go ahead and tighten down another 1/2 to 3/4 turns. Vale is adjusted. Continue on and do all the valves this way., 07-20-08 12:15 PM - Post# 1481806. In response to Tabasco. Stuck valves are a common problem with Chevrolets that are used infrequently or allowed to sit for a long time without the engine being run. Squirt WD40 or some other type of solvent on the valve stem. Tap valve at the top of the stem and the sides., Sold as a set of 8. Mr. Gasket Rocker Arm Oil Deflector Clips. Mr. Gasket rocker arm oil deflector clips keep hot engine oil off of you and your exhaust system by deflecting it down into your rocker arm assembly. This allows you to adjust your valves while your engine is running. They're designed to fit hollow feed-through type pushrods., Valve Lash Adjustment. Turn the valve rocker arm nuts clockwise until all of the valve lash is removed. Turn the crankshaft clockwise until the alignment mark on the crankshaft balancer is aligned with the notch in the engine front cover tab. Look at the number 1 cylinder valves as the crankshaft balancer alignment mark approaches the …, By rotating the pushrod, you can actually bottom the pushrod in the lifter and still be able to rotate the pushrod. If this occurs and then you tighten down the additional 1/4 to 1/2 turn the valves will never close and could interfere with the top of the pistons. With the sparkplugs removed, the engine should turn over with some resistance ..., I followed the GM book to the letter as far as removing valve lash in the order specified then turning the rocker arm nut 1 full turn. When I put it all together I had 0 compression in all cylinders except 6. After removing the valve covers, I noticed that the valve adjustment was too tight and luckily did not bend any rods, or destroy any valves!, Mar 21, 2023 · Firstly, make sure your engine is cold, and the rocker arms are free from any oil. Secondly, ensure that you have the correct tools, including a feeler gauge, a wrench, and a screwdriver. Lastly, you need to know the firing order of your engine. For a 350 Chevy engine, the firing order is 1-8-4-3-6-5-7-2. Now, let’s get to the valve ... , Contents. 4 Easy Steps on How to Adjust 350 Chevy Valves! Valve Adjustment Procedure Step By Step Guide. 1. Removing Valve Covers and Spark Plugs. 2. Turning the Engine. 3. Finalizing the Valve Adjustment Process. 4. Instructions & Precautions. How to know if Valves Need Adjustment on A 350 Chevy? Frequently Asked Questions (FAQs):, Unfortunately, I don't have cam specs, as I bought my car turnkey and the seller didn't have the cam card. I'm just curious what a "typical" range should be for valve lash on a big block Chevy. (Iron block, aluminum heads). I checked, and the lash was .036 COLD, which according to my math is about .042 hot. That seems loose no matter what to me., Apr 10, 2021 · How to adjust Chevy Small Block hydraulic cam valves the right and easy way.valve lash adjustment on a chevy 307. comp rockers https://www.amazon.com/gp/pro... , Valve adjust on Small Block 350 Hi All, Replacing heads on a 87 Blazer. The problem was no compression on one cylinder. (#5) ... My usually very sharp mech buddy thinks that the new deal on valve adjustment is: 1) Bolt(torque) down heads. ... Make, Model: 1983 Chevy 5,7l G20 Posts 213. Just a short question:, 3. Loosen an adjuster nut until the lifter clacks. Go a bit more so that the lifter can fill itself with oil. SLOWLY turn the nut back down until the clack diminishes then stops. 4. Go 1/4 more turn and move on to then next valve. 5. Do this for all 8 valves then go back and turn them ALL down 1/4 more turn each., Im new to the forum and have a question. I a going to do a valve adjustment on my stroked 350, it has a larger cam in it, not sure of the duration, but I cant help but think that there is a different process to adjusting the valves with a larger cam then the stock cam process. And what I mean is with a stock cam, you turn to TDC, and adjust a ..., Boo.Man.1971. Adjusting one cylinder at a time , watch the exhaust valve on each cylinder to just open and then adjust the intake valve. Adjust the exhaust valve with intake valve almost all the way down or almost all the way open. Adjusting the valves from zero lash , 1/8 turn for short travel lifters and 1/4 to 3/4 for conventional hyd. lifters., I'll show you how to adjust your hydraulic valves or lifters the easy way! This is a very easy method that never fails. This valve adjustment technique wor..., (Image/OnAllCylinders) Our small-block Chevy firing order is 1-8-4-3-6-5-7-2, so that’s the order in which we will install the plug wires. We started with Number One and worked our way around the distributor cap clockwise using a set of Summit spark plug wires.The best way to do this so you don’t get confused is to just follow the firing order …, User Info. My method of valve adjusting is different from most, but I found that it works fine. Go around and snug all of the rocker arms so that there is no slack in the pushrods, just enough so that when you twist it between your fingers, it begins to drag. Turn the engine over 1/4 turn and repeat the entire process., Unfortunately, I don't have cam specs, as I bought my car turnkey and the seller didn't have the cam card. I'm just curious what a "typical" range should be for valve lash on a big block Chevy. (Iron block, aluminum heads). I checked, and the lash was .036 COLD, which according to my math is about .042 hot. That seems loose no matter what …, Valve Lash. Turn the adjustment nuts down one full turn. That centers the plunger and keeps the geometry correct. Hydraulic lifters are really very simple. The lifter body has an inlet and outlet hole that oil flows into (and out of) and a check valve under the plunger. Because the oil under the plunger oil is virtually uncompressable, the ..., The Chevy 350, SBC, and BBC engines all use the same firing order. This firing order is -1 (first spark), 0 (second spark), +2 (third spark), +1 (fourth spark), -2 (fifth spark), -1 (sixth spark). The firing order of the distributor cap is the same, except that it's set up so that it fires in the opposite direction., LIMICAR SBC Steel Core Rubber Valve Cover Gaskets Small Block SB Chevy 350 305 283 327 400 383 7484BOX. $23.99 $ 23. 99. Get it as soon as Thursday, May 9. In Stock. Sold by Sauto and ships from Amazon Fulfillment. ... I normally adjust the valve lash by turning the crank by hand until one rocker rises all the way up and then adjusting its ..., Will this method work on 1970 Olds 350? Small Block Chevy Valve Adjustment Order 0 deg TDC, both number one valves shut. both intake and exhaust on the number one cylinder are closed. Adjust the #1 exhaust valve Adjust the #1 intake valve Adjust the #3 exhaust valve Adjust the #5 intake valve Adjust the #7 intake valve Adjust the #2 intake valve, 1. Remove the valve covers, and pick a cylinder you are going to set the preload on. 2. Hand rotate the engine in its normal direction of rotation and watch the exhaust valve on that particular cylinder.When the exhaust valve begins to open, stop and adjust that cylinder's intake rocker arm., As a continuation from the last video, I'll be adjusting the valve lash in my 1977 Chevrolet C10 again after we broke a rocker arm. The conclusion I came to ..., In this video we install the lifters, and go to adjust the valves and run into a problem, 46 posts · Joined 2010. #1 · Jun 25, 2012. I was wondering if when setting the valve lash on solid lifters if you can set them by getting on TDC on #1 adjusting the exhaust on 1,3,4,8 and the Intake on 1,2,5,7. Then rotating the motor 360 degrees to #6 TDC and adjusting the exhaust on 2,5,6,7 and the Intake on 3,4,6,8 or does it need to be ..., Mitral regurgitation is a disorder in which the mitral valve on the left side of the heart does not close properly. Mitral regurgitation is a disorder in which the mitral valve on ..., now you can adjust valves all day long without all the mess then put your good ones back on when your done. ... 71 Nova 350 70 Nova 350. ... On a bone stock Chevy V8 the easiest way is to tighten the nut until 3-4 threads show above it. Old flat rate trick learned when working in a dealership many years ago., C3 Tech/Performance - 350 LT-1 1972 Solid Lifter Valve Lash Adjustments? - Aloha! Can anyone give me the proper set up sequences and valve lash adjustment settings for Intake/Exhaust settings for my mechanical lifter LT-1? I've read/heard, after run up to normal temps, .024 for Intake and .030 for Exhaust. I tried..., circle on ANY OEM Chevrolet cam for adjustment, and the factory-recommended clearance on other OEM Chevrolet small-block solid-lifter cams should be factored as well by the 1.37:1-vs.-1.5:1 ratio difference at the lash point and rounded-down to the next-nearest thousandth or two to ensure that the valves are picked up and seated at ramp velocity., This is different from flat-faced lifters which perform best at zero 0 to ½ turn of preload. Tests at Crane R&D have consistently shown best performance (for hydraulic roller cam valve trains) occurs with the preload set at 1 ¼ - 1 ½ turns down from zero lash. This adjustment will maximize power throughout the RPM range and increase the ...