Winging a 1971 K5 Blazer L96 6L90 Swap

[13jraven]

Take this with a grain of salt - A few years ago, I did an L96/4L80 with a 3.73 gear in a NASCAR inspired late 70s C10 with a Fitech set up.

Set the motor and trans without the cab on the frame and had no issues with the cab clearance. I know 2WD vs 4WD and 1st vs 2nd gen - hence the "take this with a grain of salt"

The issue I had is the L96 ran hot and was a thirsty ***** with the 80 pound injectors and the tune. I had to go back and do some heat displacer matting on the firewall and the inside of the cab.

My tuner buddy swears by the 6L90 - says they handle a ton of HP/TQ in their stock form. Way past what they are rated for.

[HotRod4me]

Thanks for the input 13JRAVEN. I think the clearance will be good and love the square body tribute truck.

Had a little stall on my build while waiting for my wiring harness and ECM to come back. I've been spending my time getting my wife's 1968 Chevelle SS motor freshened up and converting the front brakes to disc brakes. Hoping to get the exhaust built for the Blazer in the next couple weeks and then fit up the body. I'll keep you posted with hopefully good progress on both.