Chevy GM LS7 250cc 60cc 6-Bolt Aluminum Bare Cylinder Head

$263.27 Buy It Now or Best Offer
free,30-Day Returns

Seller Store speedmasterusadc
(89806) 97.8%,

Location: Rialto, California
Ships to: US,
Item: 203041136432

Return shipping will be paid by:Buyer
Returns Accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money Back
Return policy details:
Other Part Number:BL10002STEP (6BOLT)
Type:281 Cylinder Head : 281 Cylinder Head [Bare]
Material:Aluminum
California Prop 65 Warning:This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Manufacturer Part Number:PCE281.1795
UPC:840136531289
Speedmaster:Speedmaster
MPN:PCE281.1795

Product Information Overview Item Condition: Brand New Specs Brand: Speedmaster Part Number: PCE281.1795 Part Type: Cylinder Heads Cylinder Head Style: Bare Cylinder Head Material: Aluminum Cylinder Head Finish: Natural Combustion Chamber Volume (cc): 60 cc CNC-Machined Combustion Chamber: No Intake Runner Volume (cc): 250 cc Exhaust Runner Volume (cc): n/a CNC-Machined Intake Runner: No CNC-Machined Exhaust Runner: No Intake Port Shape: Rectangular Intake Port Location: Standard Exhaust Port Shape: Oval Exhaust Port Location: Standard Comp. Valve Job: No Intake Valves Included: No Intake Valve Diameter (in): 2.200 in. Exhaust Valves Included: No Exhaust Valve Diameter (in): 1.600 in. Valve Springs Included: No Damper Spring Included: No Retainers Included: No Locks Included: No Valve Stem Seals Included: No Rocker Arm Studs Included: No Rocker Arms Included: No Rocker Arm Nuts Included: No Guideplates Included: No Valve Cover Mounting Style: Perimeter Bolt Accessory Bolt Holes Drilled: Yes Intake Valve Angle: 15 deg. Exhaust Valve Angle: 15 deg. Valve Guides Included: Yes Valve Guide Material: Steel Valve Seats Machined: Yes Valve Seat Machine Style: 3-angle Valve Seat Material: Ductile iron Steam Holes Drilled: No Oiling Style: Through pushrod Machined for O-Ring: No Heat Crossover: No Quantity: Sold individually. Calculator Compression Calculator Attachments Speedmaster Description Speedmaster LS-series cylinder heads is rapidly expanding. The LS (Gen3/4) platform has many design benefits over the earlier SBC engine designs, most notably the cylinder heads. Although the GM heads are good pieces, We have developed a superior line of heads for modern performance enthusiasts. Like all Speedmaster cylinder heads, the LS-series heads are produced using our “Gravity Casting” process. This process ensures a more uniform and robust casting, laying a strong platform to build on. Take a look below at our offerings, surely you will find a head to suit your application. If you require any additional information, or help selecting the correct cylinder head for your application, please feel free to call one our techs. INTAKE / EXHAUST GASKETS Unlike most other Chevy V-8’s, the LS-series engines utilize individual O-rings around each port to seal the intake manifold to cylinder head. The LS1 / LS2 / LS6 style heads & manifolds use GM pn# 12533587 and the LS3 / L76 / L92 style heads use GM pn# 1290125. On the Exhaust side of the head, all non-LS7 heads utilize the same MLS header gasket. The part number of the exhaust gasket is GM pn# 12901125. Speedmaster is currently working on a line of MLS exhaust / header gaskets. Check with your salesman to see if we have a MLS exhaust gasket available for your application. HEAD GASKETS Because there are so many different bore sizes for engines in the LS-series, below you will find a list of Speedmaster and Fel-Pro head gasket part numbers and their bore size: Bore Size Speedmaster MLS# Fel-Pro# 3.945″ SM5221(pr.) 1160L/R (ea.) 4.050″ SM5222(pr.) 4.100″ SM5223(pr.) 1161L/R (ea.) 4.170″ SM5224(pr.) 1162L/R (ea.) These Speedmaster MLS head gaskets feature 100% stainless steel construction. We don’t use inferior mild steel like some other aftermarket gasket suppliers. To aid in sealing, both outer layers of our MLS gaskets are covered with a high temperature coating. You won’t find better value in head gaskets for a LS anywhere. HEAD BOLTS / STUDS Unlike the early GM heads, Speedmaster heads use common length head bolts / studs. Starting in 2004, GM heads went to the same common length head bolt arrangement. By using bolt / stud registers that are all the same thickness, equal clamp load is created all the way around each cylinder. Our part number for the correct head stud kit is SM2464. The ARP part numbers that work with our LS-series heads are # 134-3610 (bolts) and #23-4317 (12pt. stud kits) DO NOT RE-USE GM HEAD BOLTS, THEY ARE TORQUE-TO-YIELD (TTY) AND CAN ONLY BE USED ONCE! Torque the 11mm. bolts / studs to 65lbs and the 8mm bolts / studs to 20lbs. using high pressure moly lubricant. *Please consult your hardware supplier for their specific torque recommendations! SPARKPLUGS Be careful with your selection of sparkplugs in the LS-series engines. The OEM plug is a NGK TR5. We recommend that you use NGK TR6 sparkplugs on performance oriented engines. If you require a sparkplug colder that a 6 heat range, you will have to switch away from resistor style plugs, and into the NGK R5724-7 or R5724-8. These colder plugs dont have an internal resistor, so they my cause some slight RF interface. Usually it’s not a problem unless you have a really sensitive aftermarket ECU, and even then it’s not normally a problem. If your prefer Autolite sparkplugs, use the AR103 for street / strip performance engines. The AR94 is quite a bit colder for those of you looking to squeeze N20, or heavy boosted engines. Brand Information Prop 65 Warning WARNING: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to https://www.p65warnings.ca.gov/ LOYALTY PROGRAM UNLOCK / SAVE / ENJOY Earn points to climb tiers and enjoy benefits such as access to special offers and discounts, advance notice of events and promotions and more. Everyone starts with Red Status and can rise through Bronze, Silver, Gold, Platinum, Black and Vibranium. As you ascend, you become entitled to more valuable privileges. To see how your points are tracking, just login to Your Account. Terms & Conditions Policy A RETURN AUTHORIZATION is required prior to sending back any items. Items without Return Authorization will not be accepted and returned at your expense. Our parts are aftermarket performance components designed to be used in our recommended applications, installing in non-recommended applications will void any warranty. Actual product may vary from the picture(s) provided. All returns are subject to a Restocking Fee of up to 20%. Only new, unused, 100% saleable condition Products are eligible to be returned. California Residents are subject to Sales Tax. Unless otherwise specified in our description, our parts are not approved for CARB applications or other smog certifications. Please check the regulations in your state before purchasing performance and aftermarket components. International Buyers Please Note: Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility. Check with your countrys customs office to determine what these additional costs will be prior to bidding/buying. These charges are normally collected by the delivering freight (shipping) company or when you pick the item up (Please do not confuse them for additional shipping charges). We cannot mark merchandise values below value or mark items as gifts US and International government regulations prohibit such behavior. We are not responsible for the time your county’s customs office holds the items. For any international sale buyer is responsible for all shipping charges including return shipping. Please Review our Terms & Conditions before bidding If you bid on any of our auctions, you are agreeing to our terms and conditions. The successful high bidder must complete the sale transaction within 5 working days from the date of receipt email notification following the end of sale. All item are Subject to CA tax. We will contact the winning bidders via e-mail within 24 hours after the auction has ended. All pictures displayed in our auctions are for illustration purposes only. All descriptions are provided in the best of our knowledge. While all care is taken, any errors or omissions in the item details is unintentional. We reserve the right to cancel/end the auction earlier. Shipping & Delivery All our auctions have a postage calculator, so please enter your postcode to calculate your shipping costs. Dispatch of goods is during business hours from Monday – Friday. Item will not ship until payment has been received in full. Once payment is received in full you will be notified by email with tracking number as well as the tracking number will be uploaded to your purchase history. Please check tracking number for shipment status and updates. We are not responsible for shipping company delays out of our control such as adverse weather conditions or seasonal delays. In the event of any delays within the tracking history please contact the respective shipping company. We will do everything in our control to get your package to you right and fast, but ultimately we cannot be held responsible for lost, stolen or damaged packages. Warranty Warranty is 12 months unless stated otherwise in the Ad description. Problems If you have a problem with a product or our service, please contact us prior to filing a dispute or posting unfavorable feedback so we may quickly try to get the issue resolved to your satisfaction. If you as a buyer do not fully agree with all of the terms and conditions detailed above please do not go through with your purchase. By purchasing this product you are agreeing to the terms and conditions contained herein. Thank you very much for interest, we appreciate your business. Product Fitment Announcement This product application notice is regarding the eBay fitment categories allocated to this listing. Seeing as we sell aftermarket parts; this listing fitment application categories cover both standard replacement and ‘common upgrade’ options for specific vehicle applications (eBay fitment categories). Therefore, please read the description carefully and understand your application before purchasing this item; as it may not suit your application. Please note: high performance parts are not direct replacement parts for OEM parts, and may not fit your application as original OEM parts, and may require slight modifications depending on the intended purpose of some applications.

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