LS3 416 Build - Need Advice On Top End Componentd
08-23-2016, 11:52 AM
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LS3 416 Build - Need Advice On Top End Componentd Good Afternoon,
I'm in the process of putting together parts for a March build. I have a 2005 GTO that will be getting a Thompson Motorsports LS3 416 Stroker and an F-1A-94 procharger. I need help piecing together a few parts that will give me a powerband from 3000-7000 RPM'S. Fuel will be E85.
1.) I was considering the MAST 265cc 4.00" + bore LS7 heads. These should work with the stroker since it has a 4.060" bore. Will these give me power in the RPM range that I'm requesting? Who should I have port my Heads?
2.) I was also considering the Vic Jr intake with TEA porting the intake runners. Should add a little power through the curve.
3.) Cam will be custom spec'd by Pat G to compliment the system components and the requested powerband.
4.) For reference the headers will be Kook's long tube 1-7/8" headers with off 3" road pipes followed by an x pipe and dumped before the rear axle.
Thank you for your time.
I'm in the process of putting together parts for a March build. I have a 2005 GTO that will be getting a Thompson Motorsports LS3 416 Stroker and an F-1A-94 procharger. I need help piecing together a few parts that will give me a powerband from 3000-7000 RPM'S. Fuel will be E85.
1.) I was considering the MAST 265cc 4.00" + bore LS7 heads. These should work with the stroker since it has a 4.060" bore. Will these give me power in the RPM range that I'm requesting? Who should I have port my Heads?
2.) I was also considering the Vic Jr intake with TEA porting the intake runners. Should add a little power through the curve.
3.) Cam will be custom spec'd by Pat G to compliment the system components and the requested powerband.
4.) For reference the headers will be Kook's long tube 1-7/8" headers with off 3" road pipes followed by an x pipe and dumped before the rear axle.
Thank you for your time.
08-23-2016, 01:43 PM
#2
So far I'm the only person I've seen test those heads. Even normally aspirated
Power curve took off at 7200rpm. No need for a huge cam.
I like the simplicity of the intake heads combo you mentioned. Note the Holley hi ram port matched perfectly to those heads.
Power curve took off at 7200rpm. No need for a huge cam.
I like the simplicity of the intake heads combo you mentioned. Note the Holley hi ram port matched perfectly to those heads.