Bottom End
Thread Starter
Burning Brakes
Joined: Feb 2016
Posts: 914
Likes: 182
From: Reidsville North Carolina
Bottom End
Last Year Did the Full Blown Top End Redo (Heads, Cam, Headers, Blaa, Blaa, Blaa) 463 to the wheels on dyno
Question is, what do you do on the bottom end?
I'm guessing it's next? Runs great, no problems (just jinxed myself)
Just wondering, what do you do? if anything
Probably should just work on upgrading the auto trans
Question is, what do you do on the bottom end?
I'm guessing it's next? Runs great, no problems (just jinxed myself)
Just wondering, what do you do? if anything
Probably should just work on upgrading the auto trans
Le Mans Master
Joined: Jul 2000
Posts: 7,639
Likes: 326
From: Greenville SC
Do the bottom for what? No need with what you have unless something breaks.
If you want more power N/A, you could get a stroker kit. If you want a lot more, get a SC/turbo, crank the boost, and a forged bottom end.
If you want more power N/A, you could get a stroker kit. If you want a lot more, get a SC/turbo, crank the boost, and a forged bottom end.
Thread Starter
Burning Brakes
Joined: Feb 2016
Posts: 914
Likes: 182
From: Reidsville North Carolina
Thanks, it just seems weird to me to do all the work on the top and nothing on the bottom (not [like you say] that there's anything to do)
plenty of power for me right now, very happy with what I've got
was just wondering about it
thanks
plenty of power for me right now, very happy with what I've got
was just wondering about it
thanks
Acct Suspended APR 2026 by request
Joined: Dec 2010
Posts: 10,367
Likes: 1,272
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
if staying n/a I wouldn't worry about it... building the bottom is about strength and durability, not adding power
Drifting
Joined: Sep 2009
Posts: 1,862
Likes: 595
From: Prescott, Arizona
LS bottom ends are pretty strong. A few years back Hot rod Magazine took a junkyard 4.7 LS, took it all apart and put it back together with ALL the original parts and went on to run 100 turbocharged dyno pulls, the last several at 1,000 HP.
It held up.
HRM made one CRUCIAL modification: ring gap was increased to 0.027 on the original rings before reassembly.
If you boost it, increase ring gap first. If a top ring gap closes because of increased heat under boost, it can pull off the top piston land and score the cylinder.
https://www.us.mahle.com/media/usa/m...ring-flyer.pdf
I agree that the transmission should be next. At present I am leaning toward PerformaBuilt for mine:
https://www.hotrod.com/articles/perf...2234E4C6AD132F
It held up.
HRM made one CRUCIAL modification: ring gap was increased to 0.027 on the original rings before reassembly.
If you boost it, increase ring gap first. If a top ring gap closes because of increased heat under boost, it can pull off the top piston land and score the cylinder.
https://www.us.mahle.com/media/usa/m...ring-flyer.pdf
I agree that the transmission should be next. At present I am leaning toward PerformaBuilt for mine:
https://www.hotrod.com/articles/perf...2234E4C6AD132F
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