AFR's 210 LS1 Enforcer Cylinder heads feature our Permanent Mold “As-Cast” Technology surfaces on the intake runners, exhaust runners and combustion chambers that allows for extremely accurate and repeatable port location/performance. This budget friendly head is perfect for your OEM engine operating below 6300 RPM. They come fully assembled with the identical components found in our higher end CNC ported cylinder heads; such as PAC Racing springs, viton valve seals, machined bead valve locks (not stamped), hardened spring seats and our one piece 8mm 21 4N Stainless Steel valves. They are available without any parts for the DIY. Sold as a single piece, 2 are required per engine. Please see footnotes for additional information.
Specifications & Features:
Material
A356 Aluminum
Intake Port Volume
210cc
Intake Port Dimension
3.190"H x 1.015"W x5/16 top 3/8" bottom
Intake Port Location
Stock
Exhaust Port Volume
82cc
Exhaust Port Dimension
1.400" H x 1.660" W
Exhaust Port Location
Stock
Combustion Chamber Size
64cc
Valve Angle
15°
Valve Spring Pocket Diameter
1.500" O.D
Max Valve Spring Pocket Machining
1.500" O.D
Warning:Do not machine spring pad any deeper.
Deck Thickness
0.425"
Minimum Bore Diameter
3.780""
Flat Mill
.006" per cc 58cc Maximum
Spark Plug Dimensions
14mm x .750" w/Tapered seat
CARB Status:THESE PRODUCTS ARE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. THIS MEANS ANY PUBLIC PAVED OR UNPAVED ROADWAY OR IN A PUBLIC PARK. THESE PRODUCTS ARE ONLY LEGAL IF USED ON A DEDICATED RACING VEHICLE. VIOLATION ARE SUBJECT TO A MAXIMUM PENALTY OF $37,500 PER VIOLATION PER VEHICLE, REVOCATION OF REGISTRATION BY DMV, LOSS OF USE ON PUBLIC RIGHT OF WAYS AND PROOF OF CORRECTION OF THE TAMPERING.
210cc Street Head Flow Chart
.200
.300
.400
.500
.550
.600
Int
136
199
246
272
276
265
Exh
93
140
180
204
211
215
Test conducted at 28" of water (pressure) on Superflow1020 Bore Size: 4.060", 3/4" radius plate exhaust, 1 3/4" curved pipe
