Chevy BBC 396 454 Rectangle Port Assembled Aluminum Cylinder Heads 122cc 330cc

Description: KMJ BBC345124C Big Block Chevy Aluminum Cylinder Heads 330cc Intake Port * 122cc Chamber * 2.25"/1.88" Valves For sale is a PAIR of our newly released Assault Racing rectangle port big block Chevy aluminum cylinder heads. These heads are assembled and ready to bolt on! Don't settle for a lesser set of cylinder heads, these are the best on the market at this price point! The casting quality is second to none, and these heads have been precision machined to exacting specifications! These are the biggest and baddest sets of heads we have on the shelf, with monstrous 330cc runners! They'll handle everything you can throw at them: boost, nitrous, and ultra-high compression! From stump pulling to top fuel, they'll handle it! Intake Port Volume 330cc Combustion Chamber 122cc Intake Valve Size 2.250" Exhaust Valve Size 1.880" Valve Stem Dia. 11/32" Intake Port Size 2.50" T x 1.81" W Exhaust Port Size 1.90" T x 1.65" W Max Spring Dia. 1.730" Exhaust Crossover No Plug Angle Weight (per head) 28 lbs. 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 Advanced combustion chamber design allows superb flame travel and burn Additional pushrod clearance machined along outside port walls Threaded accessory holes in ends of heads Thick deck to resist warping and allow for additional milling if desired Comes with 7/16" Shouldered Screw In Studs and Guide Plates (Not installed)All assembled heads are assembled right here in Iowa in our machine shop and checked by our machinists before leaving! Assembly features: 1.525" diameter valve springs, good to .650" lift (flat tappet cams) Stainless steel 1 piece swirl polished valves 10 degree chromoly steel retainers Hardened steel valve locks 7/16" shouldered screw in studs and guide plates Valve Material Stainless Steel Valve Type 1-piece, Swirl Polished Valve Length +.250" intake, +.100" exhaust Valve Spring Dia. 1.525", Single Spring Pressure (closed) 140lbs @ 1.900" Spring Pressure (open) 380lbs @ 1.200" Coil Bind 1.160" Recommend Lift .600"-.650" (flat tappet cams) Retainers 4140 Chromoly steel Valve Locks 10 degree, hardened steel These are the best place to start when planning your next performance engine project. Perfect for high revving drag racers & stroker applications! Lots of features at a nice price makes these perfect for anyone that has always wanted to try aluminum heads or those doing more serious race duty as well. When paired with engine size and intended use these flow well and make power - many of our customer's favorite! KMJ PERFORMANCE - TECH AND RETURNS - Please use the eBay messaging system for any returns or technical assistance MONDAY-FRIDAY: 8:00AM-5:00PM SATURDAYS: 8:00AM-4:30PM (CST)Click on store image to view our current listings of High Performance Products! Payment: Please make payment within 7 days of purchase. Paypal and Visa/MC/Discover credit card payments are accepted. Please use the eBay message system if you have any questions or need assistance. PAYPAL PAYMENTS - The majority of Paypal payments can be processed within 2-3 hours after received during our normal weekday business times. To prevent any delays with your order you should watch for the following common issues: Be sure your shipping address has a physical address that Fedex/UPS can deliver to. Addresses that only have a PO Box can cause long delays and almost always result with having to credit/cancel the order in the end. You should be able to add one onto your payment when going through the payment process. Be sure the shipping address is correct when making payment. Shipments will go to the address that comes through on the payment. Within a short time it may be already shipped and on the way. Some of our listings may request a "note to seller" to let us know if you have a certain preference or need a specific thing such things as sizes, colors, etc. Putting a note on your Paypal payment is the best way to insure it should not be missed. In order to comply with Paypal's buyer/seller protection policy, any (single) payment having a total of $750 or more must be sent with signature confirmation on delivery. This applies to all packages that may be associated with the payment. If the order requires multiple packages someone will need to sign for each one. If you find there is any problem with your payment or order we recommend calling us during normal business hours if at all possible. If you miss us during regular hours you can leave a voice mail message on our phone system. While we do our best to keep up with eBay messages, during times of heavy volume an order can get processed and shipped before we're able to get through them all to stop or change an order. Shipping: Unless a listing is set up that allows calculated shipping for other locations, the shipping amount given for an item will be ground shipping to the lower 48 states only. We do not offer any next day, air freight, or other expedited services on eBay orders. We try and combine EBay auctions when possible. Normally it will be the highest shipping amount plus half the shipping amount on other items, sometimes better on orders of small items. Some items are not combined due to size or weight such as crankshafts, torque converters, radiators, cylinder heads, etc. On multiple item purchases the shipping amount is not figured automatically during checkout so please request a new invoice or wait for us to send a combined invoice so we can adjust the total. We may have auctions that state free shipping when purchased with certain items. If purchasing items with free shipping, please request a new invoice before paying. The shipping amount is not figured automatically during checkout. We are unable to refund your Paypal once payment has been sent. If you have any doubt what your shipping will be please feel free to message us during business hours. Powered by SixBit's eCommerce Solution

Price: 1199.95 USD

Location: Story City, Iowa

End Time: 2024-04-09T21:25:15.000Z

Shipping Cost: 0 USD