2.02 ls1 heads on a 5.3

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Nov 19, 2015 | 07:48 AM

James Workman

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From: delaware

2.02 ls1 heads on a 5.3

Does anybody know if there would be a fitment issue of ls1 head with 2.02 and 1.6 valves that has been milled down to 62cc thanks for your time

Nov 19, 2015 | 07:54 AM

mikeyjm1

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From: Creedmoor, NC

I'm curious too.

Nov 20, 2015 | 01:34 AM

1FastBrick

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From: JunkYard

I am pretty sure they fit just not sure on PTV clearance.

The newer 5.3's had a 799/243 casting and people mill those down all the time.

They also have a 2.00/1.55 valve combo from the factory.

Nov 20, 2015 | 06:59 AM

gagliano7

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From: warwick,ny

I don't if this helps you but i have the prc 2.5 5.3 heads 58cc on a Lm7 with a cam motion 222/226 115+3 .600 lift. The valves are 2.02"/1.575" Stainless Steel Valves.