Pushrod Length
#1
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Join Date: Apr 2011
Location: TX
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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.
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Thanks for the responses. TSP was very helpful. I asked Jake from TSP to guess the best he could for me. I just figured I wasn't the first one to run this combo.
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#8
11 Second Club
iTrader: (13)
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
#9
TECH Senior Member
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
#10
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.
#11
TECH Resident
iTrader: (5)
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.