Flycut Ls3 Pistons

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Oct 4, 2022 | 08:51 PM

jaesul

Thread Starter

Intermediate

Joined: Jul 2021

Posts: 27

Likes: 2

Flycut Ls3 Pistons

Wondering if anyone knew if I need to flycut flat top ls3 pistons for my cam (unmilled head). The old motor this cam came in were L99 flycut pistons

Cam specs
.627/.627
226/238
113+2
1.7 rockers

Oct 6, 2022 | 06:53 PM

farmington

Safety Car

Joined: Aug 2017

Posts: 4,243

Likes: 1,133

From: North Myrtle Beach SC

I’d bet no, but measuring isn’t that big of a job

Oct 7, 2022 | 03:07 PM

m60gov20

Burning Brakes

Joined: Mar 2019

Posts: 838

Likes: 180

From: Indianapolis Indiana area

What's the lsa?

Oct 7, 2022 | 04:32 PM

old motorhead

Le Mans Master

Joined: Dec 2005

Posts: 6,999

Likes: 1,685

From: Southeast TX

Bigger duration cams with similar LSA's and more lift fit just fine. So will this one. Here's one that comes to mind: Lingenfelter GT1-1 Hyd Roller Camshaft 350-383-427 LS1 LS2 LS3 LS6

Oct 10, 2022 | 04:08 PM

jaesul

Thread Starter

Intermediate

Joined: Jul 2021

Posts: 27

Likes: 2

Thanks, everyone. Lsa is 113+2

Oct 13, 2022 | 07:04 PM

d16dcoe45

Pro

Joined: Apr 2019

Posts: 699

Likes: 421

From: Armonk, NY

Quote:

Originally Posted by jaesul

Wondering if anyone knew if I need to flycut flat top ls3 pistons for my cam (unmilled head). The old motor this cam came in were L99 flycut pistons

Cam specs
.627/.627
226/238
113+2
1.7 rockers

probably not

I ran a 236/252
.646 lift
113 + 4 on stock LS3 pistons
no isuues