Pair High Quality Big Block Chevy Aluminum Bare Cylinder Heads Hardened exhaust seats Bronze valve guides Aircraft quality high grade aluminum alloy Multi-angle seat design for improved flow at low lifts Advanced port design for improved flow at all lifts Threaded accessory holes in ends of heads Thick deck to resist warping and allow for additional milling if desired Works best for engine size 500 cubic inch or larger Intake Part Volume Combustion Chamber Intake Valve Size Max Spring Diameter Exhaust Crossover Deck Thickness Store Categories Valve Covers Dress up Kit Engine Components Suspension & Steering Order Information: Ships within 1 business day Free returns within 30 days Brand new parts, ready to install Questions? Message us anytime via eBay Powered by SixBit's eCommerce So.
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