Senior Tech Team
Join Date: Feb 2004
Location: Fayetteville, AR
Re: ls1 or 454??
I dunno what you mean "out of pocket" but I spent $2k on the motor and trans together.
Cam, lifters, springs, oil pump, ls2 timing chain, pushrods, fuel pump, swap to vette accessories, oil pan, head gaskets, head bolts, water pump/gaskets, headers ($600 alone), throttle cable, harness, pcm, new fuel line, compression fittings, power steering lines, maf, air ducting, drill and tap water pump for gauge to work, radiator hoses, engine mounts, driveshaft, exhaust, tuning, and some other small stuff...took up the rest...and it keeps going up
its not a pull out and stick in swap...
but if you're going to drive it a lot then it might be worth considering, I was getting 23mpg highway before with my 355 and overdrive, so I'm not going to see that..but I will see losing at least 400 lbs (ditched a/c too) and gaining 120hp
I will pick up some city mileage I believe...was getting 11 or so, but I'm expecting to get 13-15 with the ls1
1 thing you won't get is the BRUTAL torque of a BBC...
the t56 6 speed would be awesome but keep in mind it will require you to rework the transmission tunnel of the cars floor, the 4l60e is tight but fits
Pro Touring 1971 Chevelle SS clone
head/cam LS2, 4l60e, 3.42 12 bolt
1.61 60ft 7.25@94 1/8th 11.46@117 1/4