head gaskets?
head gaskets? Alright so I listed the wrong heads at it was the PRC STG 2.5 5.3 heads not the LS6 heads. And I'll Be running it with a EnglandGreen Mayhem II cam.
what head gasket should I run? 5.3? 5.7?
what head gasket should I run? 5.3? 5.7?
Cometic 3.910" bore gaskets or the stock LS1 MLS gaskets. Don't worry about the 5.3L chamber. You have to get a gasket that's bigger than whichever is bigger, either the combustion chamber or piston bore.
And that's a bigass cam. Will be a topend screamer.
And that's a bigass cam. Will be a topend screamer.
Trending Topics
TECH Fanatic
Joined: Jun 2011
Posts: 1,343
Likes: 8
From: Katy, TX
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo This is the first time i've ever done a big cam swap and decent heads, so how do i measure it? is it the circumference of the piston or from the Head? the extent of swapping was 317s on a stock ls1
for my valve train i have the PRC STG 2.5 5.3L heads with trunion upgrade and lunati gold springs for .660. its going through a T56 stock 10 bolt. i'm getting a M9 in june.
for my valve train i have the PRC STG 2.5 5.3L heads with trunion upgrade and lunati gold springs for .660. its going through a T56 stock 10 bolt. i'm getting a M9 in june.
TECH Fanatic
Joined: Jun 2011
Posts: 1,343
Likes: 8
From: Katy, TX
2. Measure width of combustion chamber. With 5.3 heads, I'm guessing this is around 3.8XX.
For example, my block is 3.905" bore, and my head combustion chambers are 3.96X. In that case, anything 4.000" and over is acceptable.
Ah ok thanks, another question somewhat related. When you get PnP heads from PRC do they remove the casting number and replace it with PRC or do they leave the casting number?
