They come fully assembled with the identical components found in their higher end CNC ported cylinder head; such as PAC Racing springs, viton valve seals, machined bead valve locks (not stamped), hardened spring seats and ductile iron seats (not powdered metal) their one piece 8mm 21 4N Stainless Steel valves. They are available without any parts for the DIY. Please see footnotes for additional information.The all new LS1 210cc Enforcer Cylinder Head feature 2.020" intake valves, 1.600" exhaust valves and come assembled with their 8017 springs for hydraulic roller camshafts. Designed to work with the factory GM stand and rockers they will support up to a 0.600 lift camshaft and up to 6,500 RPM. Due to the large demand for AFR heads, AFR currently takes 3-4 weeks to build a set of heads.
210cc LS1 Street Head Flow Chart. Test conducted at 28" of water (pressure) on Superflow 600 Bore Size: 4.060", 3/4" radius plate exhaust, 1 3/4" curved pipe. As-Cast Combustion Chambers As-Cast Exhaust Ports As-Cast Intake Ports 3-angle Valve Job.
8mm Bead Lock Intake Valve, 2.020 x 4.900 Overall Valve Length. 8mm Bead Lock Exhaust Valve, 1.600 x 4.900 Overall Valve Length. PAC Racing Spring 1.290 OD Hydraulic Roller Dual Valve Spring, 140 lbs on seat. 7° Titanium Retainers 1.245 O. 7° Bead Lock Valve Keepers.
D Locator 1.380 O. Specifications, Features, and Optional Supporting Components.
3.190"H x 1.015"W x5/16 top 3/8 bottom. 1.400" H x 1.660" W. Max Valve Spring Pocket Machining.
006 per cc 58cc Maximum. FAST 90mm, 92mm, or 102mm.
Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match the AFR head. Warning:Do not machine spring pad any deeper.
Note: Milling head deck will affect flow numbers. We do not lower invoice values since it is a violation of US and International custom laws.
Let us work to resolve your problem so everyone is happy. Suite D7 Costa Mesa, CA 92627. The item "AFR 1501 LS1 210cc Intake Enforcer As Cast Cylinder Head 66c Chambers" is in sale since Tuesday, March 24, 2020.
This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Cylinder Heads & Parts". The seller is "treperformance" and is located in Costa Mesa, California. This item can be shipped worldwide.