GM 336781 Big Block Chevy Oval Port Cast Iron Cylinder Heads Open Chamber. Pair of big block Chevy 336781 cast iron oval port open chamber 454 cylinder heads. They are remanufactured and ready to bolt on. Fresh valve job, new springs, seals, and locks. 118cc chamber 256/114 ports. Hours of Operation (EST). Saturday & Sunday: Closed. Addresses that are P. Pictures may vary from part, in some cases. All items are listed locally, and may be ended at any time. Add to Favorite Sellers. Sign up to Newsletter. View more great items. GM 3993820 Big Block Chevy Oval Port Cast Iron Cylinder Heads Open Chamber LS5. Melling M-55 Small Block Chevy/V6 Standard-Volume Oil Pump. Melling M-55HV Small Block Chevy/V6 High-Volume Oil Pump. Ford D9AE-6604-AA OEM Small Block Ford 351W Stock Oil Pump. This listing is currently undergoing maintenance, we apologise for any inconvenience caused. The item “GM 336781 Big Block Chevy Oval Port Cast Iron Cylinder Heads Open Chamber” is in sale since Wednesday, April 7, 2021. This item is in the category “eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Cylinder Heads & Parts”. The seller is “tgmotorsports_net” and is located in Mims, Florida. This item can be shipped worldwide.

• Material: Cast Iron
• Type: Big Block Chevy
• Manufacturer Part Number: 336781
• Brand: Chevrolet