StrykerGTss
Forum Member
So the car is parked for winter, I'm mid build on it and tossing a few options around. Initially I'd taken the engine apart to do a cam swap and install ported heads. After it was apart, I decided to expand the project a bit..
Current upgrades are:
OTR Cold Air Intake
Ported TB and Intake Manifold
Ported LS3 heads
Doug Thorley 1 3/4" LT headers (non-cated)
Borla catback
Underdrive crank pulley
I was able to come up with an LS3 block, the current plan is to pick up a 427ci stroker kit. Up for recommendations on the internals, but here's what I'm thinking:
Callies Compstar Crank 4.10"
Manley H-Lite Series Rods 6.125"
Wiseco 4.07" Pistons dished, dish size is up in the air right now
Here's where my dilemma comes in. The cam I purchased was bought with the intention of adding a blower down the road (specs are close to 224 duration .581 lift, don't have them in front of me), so I know I'm leaving some HP on the table. Also, considering lowering the compression to 9.5 or 10:1 in anticipation of the SC.
My buddy is trying to convince me to sell the cam I purchased, and go more aggressive now (LG Motorsports G6X3, specs are around 240 duration .630 lift I believe). Then if/when I decide to add a blower, pick up a FI cam at that point. He's also pushing to keep the compression at 11:1 or higher to pick up some additional power.
I know that the fuel system and a stall converter will need to be upgraded as well. Also have upgraded valve springs and pushrods from comp cams.
Has anyone done a build like either of these? The goal is 550hp/550lb-ft at the wheels, I'm thinking either of these setups should get me at least that much. Really trying to avoid any drivability/idle issues. Also need to keep the car calibrated for premium fuel.
Thoughts and opinions are appreciated.
Current upgrades are:
OTR Cold Air Intake
Ported TB and Intake Manifold
Ported LS3 heads
Doug Thorley 1 3/4" LT headers (non-cated)
Borla catback
Underdrive crank pulley
I was able to come up with an LS3 block, the current plan is to pick up a 427ci stroker kit. Up for recommendations on the internals, but here's what I'm thinking:
Callies Compstar Crank 4.10"
Manley H-Lite Series Rods 6.125"
Wiseco 4.07" Pistons dished, dish size is up in the air right now
Here's where my dilemma comes in. The cam I purchased was bought with the intention of adding a blower down the road (specs are close to 224 duration .581 lift, don't have them in front of me), so I know I'm leaving some HP on the table. Also, considering lowering the compression to 9.5 or 10:1 in anticipation of the SC.
My buddy is trying to convince me to sell the cam I purchased, and go more aggressive now (LG Motorsports G6X3, specs are around 240 duration .630 lift I believe). Then if/when I decide to add a blower, pick up a FI cam at that point. He's also pushing to keep the compression at 11:1 or higher to pick up some additional power.
I know that the fuel system and a stall converter will need to be upgraded as well. Also have upgraded valve springs and pushrods from comp cams.
Has anyone done a build like either of these? The goal is 550hp/550lb-ft at the wheels, I'm thinking either of these setups should get me at least that much. Really trying to avoid any drivability/idle issues. Also need to keep the car calibrated for premium fuel.
Thoughts and opinions are appreciated.
