*****100%NEW***** *****100%NEW*****

Procomp Motorsport's 3021 BIG BLOCK CHEVY, ASSEMBLED, Aluminum Cylinder Heads,
396, 402, 427, 454, 502 Chevy Big Block Engines
MFG. SPECS:
Aircraft Grade 356A T-6 Aluminum Alloy

115cc Combustion Chamber, High Flow 320cc Intake Runners

Fits All OEM Bolt Pattern Manifolds, Intake Bolt Standard OEM Length

8 Bolt Exhaust Flange, Square Port Exhaust, 15/24 Degree Valve Angle

Manganese Bronze Valve Guides, 3 Angle Cut Stellite Valve Seats

Uses Full Size Plug AGF-22, Takes Felpro 1275 bigger gasket set, Felpro 1047 Head Gasket Set

65 ft.lb Torque Specs, .400" thick deck can be milled down to 54cc. ,

Can be Used with Nitrous, Ultra High Compression, & Turbo/Superchargers,

Suggested Roller Cam Base of 1.130", Machined for 7/16" Rocker Studs

ASSEMBLED FEATURES INCLUDE;

4324 S/S Intake Valves- 2.250 + 0.250, OAL 5.494" (11/32" stem)

4317 S?S Exhaust Valves- 1.88 + 0.100", OAL 5.522" (11/32" stem)

7deg. Valve Locks +.145

4140 Steel Retainers 1.400 x 1.060 x 0.690

Valve Springs Rated at .750" Max Lift, Single Springs w/Dampner, OD 1.542"

Spring Pressure; Intake, 1.805" @ 165lbs, Exhaust 1.770"@ 180lbs

Coil Bind @ 750lbs.

Installed Spring Height-Intake 1.82/Exhaust 1.87

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

Guide Plate Kit $49.95,

Long 7/16" Rocker Stud Kit $49.95,

Head Stud Kits @$79.95,

BBRocker Arm Sets $115.00

Overall Gasket Sets avaiable!

Flow Test Data @28" CFM Water Intake (according to manufacturer)

LIFT 100 200 300 400 500 600 700
INTAKE 74.83 166.11 245.36 308.05 339.84 360.43 374.31
EXHAUST 62.0 118.0 160.0 195.0 229.0 248.0 265.0

Seller Phone Number: 850-575-9900

This item is NEW

Trades NOT ACCEPTED

Payment options:

No Personal Checks!

Item Location: TALLAHASSEE, FL Get Directions To This City

Instructions for buyer:  Buyer will pay all shipping/handling charges to their final delivery destination.

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