Home - GM Crate Motor Parts and Kits - 604 and 603 CRATE ENGINES/MOTORS & PARTS - GM Performance 604 Crate Bow Tie Logo Fast Burn Cylinder Heads- NEW-3RD DESIGN

GM Performance 604 Crate Bow Tie Logo Fast Burn Cylinder Heads- NEW-3RD DESIGN

GM Performance 604 Crate Bow Tie Logo Fast Burn Cylinder Heads- NEW-3RD DESIGN
GM Performance 604 Crate Bow Tie Logo Fast Burn Cylinder Heads GM Performance 604 Crate Bow Tie Logo Fast Burn Cylinder Heads GM Performance 604 Crate Bow Tie Logo Fast Burn Cylinder Heads- 3RD DESIGN
SKU
GMP19300955
Weight
24.10 lbs
Market price:
$1199.95
Our price:
$1154.83
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Cylinder Head Style: Assembled

Cylinder Head Material: Aluminum

Cylinder Head Finish: Natural

Combustion Chamber Volume (cc): 62

CNC-Machined Combustion Chamber: No

Intake Runner Volume (cc): 210cc

CNC-Machined Intake Runner: No

CNC-Machined Exhaust Runner: No

Intake Port Location: Standard

Exhaust Port Shape: D-port

Exhaust Port Location: Raised

Spark Plug Style: Angle

Intake Valves Included: Yes

Intake Valve Diameter (in): 2.000 in.

Exhaust Valves Included: Yes

Exhaust Valve Diameter (in): 1.550 in.

Valve Springs Included: Yes

Outside Diameter of Outer Spring (in): 1.250 in.

Damper Spring Included: No

Number of Springs Per Valve: Single

Retainers Included: Yes

Retainer Material: Steel

Locks Included: Yes

Lock Style: 7 degree

Valve Stem Seals Included: Yes

Valve Stem Seal Style: Umbrella

Rocker Arm Studs Included: Yes

Rocker Arm Nut Thread Size: 3/8-24 in.

Rocker Arms Included: No

Rocker Arm Nuts Included: No

Guideplates Included: No

Accessory Bolt Holes Drilled: Yes

Valve Guides Included: Yes

Valve Guide Material: Bronze

Valve Seats Machined: No

Valve Seat Material: Steel

Steam Holes Drilled: No

Oiling Style: Through pushrod

Machined for O-Ring: No

Heat Crossover: No

Quantity: Sold individually.

Notes: Features raised runners, check Suggested Parts for proper intake manifolds. Exhaust port is raised .200 inch over the factory location.

These fully assembled, CNC-machined aluminum Fast Burn cylinder heads from Chevrolet Performance are designed for 1958-2000 283-400 c.i.d. Chevy V8s. They quickly and completely burn the air/fuel mixture, ensuring higher cylinder pressure and more power. No additional porting is required--Chevrolet Performance Parts' cast-ported technology gives these heads maximum performance right out of the box. They're drilled and tapped for Vortec and raised port manifolds, they accept flange-mount or centerbolt-style valve covers, and will support in excess of 500 HP.

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