Free Shipping on Performance Auto Parts Order by 11 PM EST for Same Day Shipping!
Chevrolet Performance Rocket Engine Blocks
The Chevrolet Performance Rocket Engine Blocks is a cast iron block that is precision CNC machined and does not require additional blueprinting to correct production tolerances. All block dimensions are machined to +/- .001". The blocks extra-thick siamesed cylinder walls provide a minimum .275" wall thickness with a 4.125" bore. The cylinders can be bored to a maximum of 4.155" diameter.
The outer water jacket walls are scalloped to enhance coolant flow around the siamesed cylinders. This block is available with deck height 9.325". The reinforced deck has a minimum .625" deck thickness, regardless of the deck height specified. The head blot holes are blind-tapped and the head bolt bosses are freestanding to minimize cylinder bore distortion!
Buy High Performance Auto Parts and Truck Accessories
JEGS has discounted auto parts and top brands like Edelbrock, Magnaflow, Flowmaster, Comp Cams, K&N,Holley, MSD Ignition, Moroso and more. We stock auto parts and truck accessories, like carburetors, tires & wheels, exhaust parts, crate engines, headers and cold air intakes.
Find out why JEGS is the customer service leader!
Over 50 years of experience delivering the best high performance auto parts brands. JEGS has an experienced technical support staff along with 100% satisfaction guarantee. Our warehouse is filled with millions of name brand parts ready for same day shipping.
What You Want - When You Want It - At the Price You Want to Pay