Month: July 2017

Here’s a surprise from last weekend’s cruise-in, a new L86 Truck engine installed in a ’56 Belair, 430hp and 470 ft/pds of torque.  They machined up some spacers and managed to fit a Vintage Air serpentine belt system.  Turns out the guy’s son lives a few doors down from me.
The truck engine L86 (6.2L) and the L83 (5.3L) have this funny upward tilt to the intake manifold, which is exactly opposite to the LT1 and the LT4, and presents a challenge trying to plumb in an intake system.

We only went to 6,000 rpm, so there was a full 800 rpm left which would probably be another 10-20 hp.