Welcome To The PSI Blog

Chevelle SS Restomod Phase III: Stop and Go

by Kyle Tomita on Sat, Jan 9th, 2010 | Client Vehicles


After waiting so long, Middlemas wanted a little something extra under the hood.  So, PSI replaced with stock engine with a slightly built LS1.  This engine definitely increases the performance of this Chevelle.  The LS1 is an aluminum engine normally found in a C5 Corvette.  This LS1 is a 5.7L small block V8 from Turnkey with 450 hp and 440 ft-lbs torque. The engine features Performance camshaft, double roller timing chain with billet gears, A.R.P. rod bolts, chromoly Manley push rods, heavy duty valve springs, and forged Mahle pistons.


The LS1 is mated to a Tremec TKO 500 5-speed transmission.  This modern transmission matches nicely with the LS1 and improves drivability.  The rear end is a Moser built 12 bolt with  33 spline alloy axles.  There is a truetrac LSD with 3.46 gears.

To allow the engine to breathe properly, PSI fabricated a custom intake and exhaust.


The stock brakes needed to be upgraded, so a Wilwood setup was added to the Chevelle.  Four piston ultralight calipers were used to stop 13" rotors in the front and 12" rotors in the rear.  The fronts are aluminum hub hub floating rotors.  The rear setup also has the e-brake built in.  A billet master cylinder, also from Wilwood, feeds the calipers through custom stainless tube brake lines with stainless braided flex at the ends.

The LS1 and brakes will be spinning and stopping Billet Specialties Rasp II wheels.  These wheels are wrapped in BFGoodrich g-Force Sport tires, with 225/45 ZR17 in the front and 275/40 ZR17 in the rear. DSC_8543