SBC 23 Degree Chevy Racing Cylinder Heads
Whether it's circle track, drag racing or street performance the Pro-Filer All-American Series SBC cylinder heads are the solution for your big horsepower needs. Featuring powerful port designs that are packed with air speed and unbeatable, made in the U.S.A., casting technology. The All-American series gives you an edge on the market providing awesome and reliable power. Now available in various intake port runner sizes, and three different chamber sizes, you can find the right fit for your application. |
 
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176 Series SBC Head Specifications
Material: Aerospace Specification, A356 Aluminum Alloy (Primary Virgin Ingot)
Valve Angle: 23deg valve angle to provide you with bolt on compatibility for stock accessories
Bore Spacing: Standard
Intake Port Volume & Shape: Oval-Shaped, PRECISION As-Cast 185cc, 195cc & 210cc
Combustion Chamber: Heart-Shaped, As-Cast - 64cc, 70cc, 72cc
Rocker System:Improved Solid Rocker Bar for added stability. May use standard or majority of aftermarket Rockers
Exhaust Valve Diameter: 1.600"
Intake Port Flow: 308cfm,
Intake Valve Diameter: 2.020"-2.100"
Deck Thickness: 1/2"
Milling: Angle - .0070" per cc Flat - .0050" per cc
Spark Plugs: Revised location to improve flame travel. .750 Reach, Gasketed (NGK R5671A-7 or colder)
Valve Train: Standard
Valve Guides: Manganese Bronze to assist in extending valve life
Spring Pocket: Maximum of 1.650 (no deeper)
Valve Seats: Steel
Valve Length: Intake – Stock +.100 long (1.900 Install) Exhaust - Stock +.100 long (1.900 Install)
Valve Covers: Drilled for both, center and rail bolt
Application: High Performance (i.e. street/strip/marine)
Engine Size: 185cc - 350+cid / 6000 rpm, 195cc - 350cid - 383cid / 6500rpm, 210cc - 383cid-427cid / 7000rpm
Valve Angle: 23deg valve angle to provide you with bolt on compatibility for stock accessories
Bore Spacing: Standard
Intake Port Volume & Shape: Oval-Shaped, PRECISION As-Cast 185cc, 195cc & 210cc
Combustion Chamber: Heart-Shaped, As-Cast - 64cc, 70cc, 72cc
Rocker System:Improved Solid Rocker Bar for added stability. May use standard or majority of aftermarket Rockers
Exhaust Valve Diameter: 1.600"
Intake Port Flow: 308cfm,
Intake Valve Diameter: 2.020"-2.100"
Deck Thickness: 1/2"
Milling: Angle - .0070" per cc Flat - .0050" per cc
Spark Plugs: Revised location to improve flame travel. .750 Reach, Gasketed (NGK R5671A-7 or colder)
Valve Train: Standard
Valve Guides: Manganese Bronze to assist in extending valve life
Spring Pocket: Maximum of 1.650 (no deeper)
Valve Seats: Steel
Valve Length: Intake – Stock +.100 long (1.900 Install) Exhaust - Stock +.100 long (1.900 Install)
Valve Covers: Drilled for both, center and rail bolt
Application: High Performance (i.e. street/strip/marine)
Engine Size: 185cc - 350+cid / 6000 rpm, 195cc - 350cid - 383cid / 6500rpm, 210cc - 383cid-427cid / 7000rpm
Parts and Accessories
Info Pending
