IAII Aftermarket Pontiac Cast Iron Blocks
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IA II / Butler Performance Aluminum Pontiac Block

AS SEEN ON HORSEPOWER TV!!

CONGRATS TO MIKE COOPER ON WINNING THE BUTLER PERFORMANCE FRANTIC 4 AT NORWALK WITH HIS NEW ALUMINUM BLOCK ENGINE.
AUGUST 2006

$4,695.00
*NOW TAKING ORDERS*

First test block dyno numbers: torque 2,105.2 ft-lb, and HP was 2,886.0 @ 7200 rpm
with a 4.250 bore and 4.250 stroke & 40+ lbs of boost (482 c.i.)

ALL THE FEATURES OF THE IA II CAST IRON BLOCK.... WEIGHS ONLY 125 LBS. MAX BORE SIZE 4.350, FULLY WATER JACKETED FOR STREET OR RACE USE.

After many hours of run time and more than 20 dyno pulls at over 2000 HP+, we disassembled the engine to check for fatigue due to stress. After we completely went through the block we found NO signs of fatigue or wear on the bearings, cylinders, etc. Even at 43 lbs of boost through the Turbonetics turbo's the head gasket and ring seal were better than we previously had with the cast iron blocks. These blocks will prove to be one of the most durable on the market regardless of brand, price or material. These blocks can be used in almost any application from street use (fully water jacketed) to all out racing engines. Check back for more updates.

Click HERE for High Performance Pontiac's article on the aluminum engine.
Click HERE for High Performance Pontiac's article on the aluminum block.
Click HERE for Horsepower TV's show on the aluminum block.