Re: Which Engine
There's a certain amount of reliability in all the new parts you get in a GM crate. But with that said, if i had to do it over again, i would buy the ZZ4 or ZZ383 short block and build it out from their solid base. i've run a zz4 crate since 2001 with absoultly no problems and in front of a tko would always get 21 + mpg at 70 to 75 mph. this year i rebuilt the heads, stuck it with a thumper cam and EPS manifold. I dont get the mileage anymore but its more of a screamer than it was..
69 X-44 base coupe, ZZ4, 16lb nodular flywheel, Center force DF clutch + PP, Holley 600DP, Hooker super comp 1 3/4 ceramics, 2.5" dual exhaust w/ X-pipe, flowmaster 40 series mufflers.