measuring for pushrod length
measuring for pushrod length this is probably a worthless question since i think its a no but..
can i pull apart an lt1 lifter and make it solid to measure? im replacing the lt1's with the ls7's but i think the plunger may be different? is it different enough to throw off my pushrod length? didnt want to take apart my new lifter as ive never disassembled one
thanks
can i pull apart an lt1 lifter and make it solid to measure? im replacing the lt1's with the ls7's but i think the plunger may be different? is it different enough to throw off my pushrod length? didnt want to take apart my new lifter as ive never disassembled one
thanks
Launching!
Joined: Nov 2012
Posts: 253
Likes: 0
From: Midwest City, Ok
I measure the entire plunger travel, then note it.
Then, with the plunger completely depressed i check the roller tip pattern and find a pushrod length.
After finding a length i subtract all but .050" of the plunger travel from the pushrod length to find the final length I need for the engine.
The .050" I leave in the measurement affords me the proper lifter preload. Viola! No need to build a solid lifter or anything.
Then, with the plunger completely depressed i check the roller tip pattern and find a pushrod length.
After finding a length i subtract all but .050" of the plunger travel from the pushrod length to find the final length I need for the engine.
The .050" I leave in the measurement affords me the proper lifter preload. Viola! No need to build a solid lifter or anything.
10 Second Club
Joined: Oct 2007
Posts: 2,630
Likes: 28
Buy yourself a set of $6.97 checking springs. They are so weak that they won't compress a hydraulic lifter as you turn the engine over.
http://www.summitracing.com/parts/pro-66793
It's always good to have more tools at your disposal. These springs come in very handy for checking piston-to-valve clearance after a rebuild, or a head/cam swap.
http://www.summitracing.com/parts/pro-66793
It's always good to have more tools at your disposal. These springs come in very handy for checking piston-to-valve clearance after a rebuild, or a head/cam swap.
^^^That's what I use. They won't kill an adjustable pushrods either. Use a Sharpie to blacken the valve stem tip. Adjust the pushrod length for the narrowest wiped pattern centered on the valve stem tip. Measure that pushrod length and order your new pushrods. Decked blocks, milled heads, different cam profiles, and different rockers all effect this.
It's well worth the effort.
It's well worth the effort.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
