Sign Up to Get
10% Off Your Next Order!
+ 500 FREQUENT BUYER POINTS
Be among the first to receive Weekly Specials & OPGI News.
10% off restoration parts only. 500 Frequent Buyer Points added after promotional order ships. See welcome email for full details.
Sign up for texts from OPGI, and get all our best offers and more!
By subscribing to OPGI text messaging at 80205, you agree to receive recurring autodialed marketing text msgs (e.g. cart reminders) to the mobile number used at opt-in. Consent is not a condition of purchase. Msg frequency may vary. Msg & data rates may apply. Reply HELP for help and STOP to cancel. See Terms and Conditions & Privacy Policy.
Color Variation
Due to variations in monitor settings, some colors on this page may appear slightly different from GM originals. In addition, due to color differences in the original GM dye lots, interior product colors may vary slightly.
ADDED TO YOUR CART!
Cyl Heads, AFR Mongoose Street, LS3 4-Bolt, 260/95cc, 69cc Chamber
ADDED TO YOUR WISHLIST!
AFR’s MONGOOSE LS3 Rectangle Port cylinder heads are 100% 5-AXIS CNC ported and made with A356 aluminum. All heads come with high quality components, such as titanium retainers and Pac Racing Springs. These are equipped with AFR's standard 3/4" thick deck, with thicker port and combustion surfaces. Reinforced rocker stud bosses, and thick wall runners are structural features for added strength and reliability. AFR stud girdles along with full roller arms are required. The assembled heads utilize titanium retainers, dual valve springs and premium grade components throughout. Available in a 260cc runner volume. Minimum bore sizing is 4.000” to accommodate intake valve clearance. Recommended operating up to 7000 RPM for street/strip builds.
CARB EO Number: D-250-5 (pdf)