Need engine recommendations for my Trailblazer SS
#1
Need engine recommendations for my Trailblazer SS
I have a 2WD 2006 Trailblazer SS with everything modified but the rearend and engine. Since I'm looking at 140k on the engine I want to swap it out. I have an iron LQ block ready to go. My question is should I go 370 or stroke it to 402/408? Also I need guidance on heads, ported 243s, aftermarket castings, or rectangular port? Also what intake manifold, I'm curious about the Edlebrock Pro Flo or the new Holley intake. The transmission is a level 6 RPM unit and I currently have a 3600 stall Yank. I would like to run a 12.0 before nitrous. The truck now in the Alabama summer heat, with a full tank of gas and spinning went a 13.2. In cooler weather it should go a 12.7, so I would only need 70-80 hp ro reach my goal. Whatever I do it has to be streetable to DD and tame enough to for my wife to jump in and drive. Thanks for the help
#3
The motor has 140k miles on it, I want the LS2 to build to go in my Camaro since having an additional 90 lbs over the nose of it will make more of a difference than it would in the Trailblazer. And if I go with a turbo like I want, I don't want an extra 90lbs plus the weight of all the turbo stuff. Irregardless of the power it will make I would like the Camaro to be as balanced as possible. With the TBSS since the suspension, brakes, transmission and everything else is done the next logical thing is a bigger motor. So before I put heads and a cam in a motor with as many miles as this on has (even though it's in great shape) I would rather put heads and a cam in a forged bottom end so if I spray it or stick a PD blower on it the bottom end won't be an issue.......ever
#5
Reason I was considering a Pro Flo or Hi Ram was for upeer RPM power. The 402 and bump in compression should have strong bottom end and midrange, which had me thinking the intake swap would help the top of the midrange and the top end. Since the truck currently has a 3600 stall Yank it doesn't spend much time in the lower revs. Even if I just ease in the throttle the RPM jumps to 3k. But I do want a very strong midrange more than a top end monster
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