BARE HEADS;
SBC 190cc & 205cc;....$490.00 per set.
ASSEMBLED HEADS;
SBC 190cc $ 205cc;.....$725.00 per set.
SMALL BLOCK CHEVY, 190cc or 205cc ALUMINUM Cylinder Heads-(Pair). 265, 283, 302DZ, 307, 327, 350, 383, 400 Chevy(NO Steam Holes) Small Block, Street, Performance, Short Track, Restricted Oval up to 6500rpm.
BlackLabel's Factory New Aluminum cylinder heads offer these features; Aircraft grade 356A Aluminum Alloy Heat treated to T-6 specifications, CNC Machined, 23 Degree Valve Angle, High Flow Intake Ports, 1.125" Wide x 2.230" Tall Intake Openings 64cc Combustion Chamber , Fits All OEM Bolt Pattern Manifolds, 7 Bolt Exhaust Flange, Square Port Exhaust, Centerbolt and Outside Valve Cover Bolt Patterns, Bronze Valve Guides, Angled Plugs, 3 Angle Cut Stellite Valve Seats Hardened, Seats are Machined for 2.020"/+0.100 & 1.600"/+0.100 Valves, 11/32" stem.
Assembled features Include;
Intake Valves 2.020"/ +0.100/ 5.040 (11/32" stem), Exhaust Valves 1.600"/+0.100/ 5.065 (11/32" stem), 4140 Steel Retainers 1.400 x 1.060 x 0.690, Valve Locks +.90.,Dual Springs.
Installed Spring Height-Intake 1.821 / Exhaust 1.806, Diameter 1.440". Spring: Intake, 130lbs @ 1.820 Exhaust, 145lbs @ 1.760, .750 Max Lift. Coil binds @ 700lbs. Installed spring height should be checked with your camshaft specs of your application. Heads are Machined to accept high performance large diameter dual valve springs. 400" thick deck can be milled down to 54cc. Spring Pocket can be cut to 1.625-no deeper! Uses Felpro 1266 Intake Gaskets, & Felpro 1014 Head Gasket Set.
Heads are drilled with all OEM accessory bolt holes. Use standard 14mm x 750"reach, 5/8" hex, gasket seat plugs.
Flows: Test Data @28" of water, (according to manufacurer). Lift 100 200 300 400 500 600 700
INTAKE 58.0 113.5 159.2 199.7 227.6 244.2 248.3
EXHAUST 52.0 97.8 132.94 161.90 180.00 189.20 192.10
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