SMALL BLOCK CHEVY PROCOMP HEADS ASSEMBLED

YOU ALL WANTED THEM TO HERE THEY ARE! SMALL BLOCK CHEVROLET FULLY ASSEMBLED PROCOMP HEADS. THESE ARE THE SAME HEADS WE HAVE BEEN SELLING, NOW THEY COME COMPLETE, READY FOR YOUR VALVETRAIN TO BOLT ON!! YOU WONT FIND A BETTER PRICE ANYWHERE ON THESE HEADS. THESE ARE BLOWOUT PRICED AT $799.00. ADD $400.00 FOR CNC POLISHED. THESE HEADS ARE GOOD UP TO 6500 RPM. BELOW ARE THE SPECS.


Aircraft grade 356A Aluminum Alloy heat treated to T-6 specifications.

23 Degree Valve Angle, High Flow 190cc 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 (use AGF-22), Hardened Valve Seats

3 Angle Cut Valve Seats

Seats are Machined for 2.020"/+0.100 & 1.600"/+0.100 Valves, 11/32" stem

Machined to use high performance large diameter dual valve springs.

400" thick deck can be milled down to 54cc.

Uses Felpro 1206 or Larger Intake Gaskets

Heads are drilled with all OEM accessory bolt holes

Intake Valves #4304 2.020"/ +0.100/ 5.040 (11/32" stem)

Exhaust Valves # 4302 1.600"/+0.100/ 5.065 (11/32" stem)

4140 Steel Retainers 1.400 x 1.060 x 0.690

Valve Locks +.90

Installed Spring Height-Intake 1.821 / Exhaust 1.806, Diameter 1.440"

Spring: Intake, 130lbs @ 1.820 Exhaust, 145lbs @ 1.760, .500 Max Lift

Coil binds @ 700lbs

Installed spring height should be checked with your camshaft specs of your application.


Flows: Test Data @28" of water, (according to manufacturer).

Lift 100 200 300 400 500 600 700
INTAKE 70.74 146.41 203.72 249.84 260.98 266.51 276.41
EXHAUST 56.90 100.99 156.94 176.85 186.34 190.13 194.87

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Item Location: GREENVILLE, SC Get Directions

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