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Pushrod Length
Thread Starter
Teching In
Joined: Apr 2011
Posts: 6
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From: TX
Pushrod Length I ordered a set of PRC Stage 2.5 5.3 heads and a 224R with a 114 Lsa from TSP. The heads will be milled to 60cc. Will be running stock crank, pistons, rods and I believe a stock size head gasket. I had the guy at TSP guess on push rod length and said 7.35. Has anyone else run this set up and know the proper push rod length? I have a push rod length checker coming to but I would prefer not to have to send the push rods for exchange. They havnt shipped yet so I can still switch. I am also running stock rocker that will be rebuilt with the comp cams kit. Thanks.
Since TSP is involved and you bought the adjustable pushrod, just have them wait on shipping the pushrods. It might be a couple extra bucks to have them shipping once you measure but at least you will only ship once as compared to having to return parts.
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easy way to get push rod length: Measure camshaft base circle. Most likely it will be the same as OEM. compare gasket thickness to OEM. see how many .001" the heads were milled. Subtract all the new measurements from OEM measurements and then subtract that number from 7.400. done and done lol
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TECH Senior Member
Joined: Mar 2004
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From: BFE
easy way to get push rod length: Measure camshaft base circle. Most likely it will be the same as OEM. wrong compare gasket thickness to OEM. see how many .001" the heads were milled. Subtract all the new measurements from OEM measurements and then subtract that number from 7.400. done and done lol
I agree! For as many time as this topic comes up, I'm suprised people still ask...
FWIW TSP told me the stock 7.4 pushrods should work with my combo (They did tell me to measure tho). When I actually measured, I needed 7.375".
You never know....MEASURE and be safe.
FWIW TSP told me the stock 7.4 pushrods should work with my combo (They did tell me to measure tho). When I actually measured, I needed 7.375".
You never know....MEASURE and be safe.
If you have access you might consider a set of 8 inch calipers (make sure 8" or more) from harbor freight or the parts store too to get overall length. The checkers have a bit of slop in them. Not the end of the world on ls7 lifters which i assume you're running, just $20 more piece of mind if you want it.
