Chevrolet Performance 12691728 SBC Cast Iron Vortec Cylinder Head

Description

Bolt-on horsepower for your 1955-Newer Small Block Chevy V8, Uses modified combustion chambers and high velocity port technology to provide improved performance, Vortec cylinder heads significantly outflow non-Vortec service replacement cylinder heads and earlier OEM cast-iron heads, Completely assembled head with 1.940"/1.500" valves, Ideal for applications up to 350 horsepower - Requires Vortec specific intake manifolds
Chevrolet Performance 12691728 SBC Cast Iron Vortec Cylinder Head
Sku # 35512691728
Mfr. Part # 12691728
Condition
New
Brand
Chevrolet Performance Parts
Sold
Each
Details
Info
Bolt-on horsepower for your 1955-Newer Small Block Chevy V8 with a set of these Vortec cylinder heads from Chevrolet Performance.
An easy way to gain 20-40 horsepower
For use with 1955-Newer Small Block Chevy V-8 engines
(except later-style LT1/LT4 engines with reverse-flow cooling)
Value-priced cast-iron cylinder heads
Uses modified combustion chambers and high velocity port technology to provide improved performance
Vortec cylinder heads significantly outflow non-Vortec service replacement cylinder heads and earlier OEM cast-iron heads
Ideal for applications up to 350 horsepower
Requires Vortec specific intake manifolds
Completely assembled head with 1.940"/1.500" valves
Uses bare head p/n: 12529093
64cc combustion chamber
Straight spark plugs
No heat risers
Camshafts with more than 0.475" lift require machining valve guide bosses and checking valve seal to valve spring retainer clearance
Can be machined for 2.020"/1.600" valves
Rocker arm studs can be pinned or drilled and tapped to 3/8"
Valve spring seat diameter is 1.280"
Casting number 10239906 or 12558062
Assembled with the following:
Intake Valves - 10241743
Valve Spring Retainer - 10241744
Exhaust Valves - 12550909
Intake Seals - 10212810
Valve Springs - 10212811
Exhaust Seals - 12564852
Valve Locks - 24503856
WARNING: Cancer and Reproductive Harm -- p65Warnings.ca.gov
California Customers: This part has been identified as emissions sensitive and can only legally be installed on race-use only vehicles, off-road-use only vehicles, or pre-1965 vehicles in the State of California in accordance with the California Air Resource Board (CARB) requirements. Once your order is placed you will be contacted by Speedway Motors within 2 business days so that you can certify that you will only use such parts on these types of vehicles in California.
Specs
Sold in Quantity
Each
Cylinder Head Style
Assembled
Spark Plug Style
Straight
Material Type
Cast Iron
Combustion Chamber Volume
64cc
Combustion Chamber Volume Range
60cc - 69cc
MFG. Part #
12691728
Shipping
Combined Shipping:
Please take advantage of the “add to cart” button on each listing to get everything in your cart prior to completing checkout. This will ensure you receive a combined shipping rate on your entire order.
Freight Shipping:
Some products are too large for standard ground delivery and must be shipped via truck freight.
Please contact us via eBay Message for a freight shipping estimate.
When possible, please provide a business or commercial address for delivery to eliminate additional fees.
Please ensure the phone number provided is accurate to avoid delays.
Upon delivery, the recipient must inspect the shipment before the driver leaves as there may be concealed damage; please open the carton to inspect the contents. Any visual damage must be noted on the shipping document BEFORE signing for delivery. Any damage not noted before signing for delivery is the buyer’s responsibility. If damage is found, the shipment may be refused, but please contact us as soon as possible and arrangements will be made to have the product replaced and damaged parts returned.
Tech Support
We're here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through eBay Messaging and a knowledgeable Speedway Motors team member will be happy to help.
About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 69 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.
Return Policy
We want you to be satisfied with your purchase. If within 60 days after you receive your shipment and you are not satisfied, you may return the item for a refund. Refunds will be processed (1-2) days after the item is received by Speedway. All returned merchandise must be in original factory condition with no modifications or alterations. A restocking fee up to 15% may be applied if items are not in new condition.
Returned merchandise must include all packaging materials, warranty cards, manuals, and accessories. If the items being returned need to be repackaged, there will be a repacking charge. Repack the item in a sturdy box, include a copy of your invoice and complete the form on the back of the invoice. You must ship orders back PREPAID. WE DO NOT ACCEPT COD SHIPMENTS.
All fiberglass items returned will be subject to a 15% restocking charge. No returns on electrical parts, DVDs, and books unless they are defective. Absolutely no returns on special order or closeout merchandise.
Payment
Accepted Payment Methods - PayPal and major credit cards are accepted.
Terms - Immediate payment is required on all listings.
To view states in which sales tax will apply to your order, please visit the “shipping and payments” tab.
Guarantee
Speedway accepts full responsibility for the accuracy of our listings and product representation. If an egregious shipping or description error occurs, we are happy to assist with a replacement or refund.
Disclaimer
Due to our large inventory and the diversity of our product line, the stock photo used may not be an exact representation of the item you are bidding on. Please read all product information carefully before purchase to avoid any order issues.