Other products by AFR
Item #: 3802
Reg. Price: USD $2,099.00
Our Price: USD $2,091.00
Quantity:
 

Description 

270cc BBF "Bullitt" 14° Street Head

AFR`s 270cc "As Cast" heads are the cost effective performance choice over re-worked factory heads. They feature partially CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout with standard exhaust port locations. Recommended for street, towing, or street/strip engines with displacements up to 477 cubic inches, operating up to 6200 RPM. 

Application specific pistons or fly cutting of your current pistons are required due to the revised valve locations and angles of the AFR Bullitt heads. 

270cc Partially Ported BBF

Tested on 4.390 Bore

270cc Partially Ported BBF

Included Components
50% CNC Ported Combustion Chambers
80% CNC Bowl Blend Intake & Exhaust, Intake Gasket Match
Competition 5-Angle Valve Job
AFR #755111/32" Bead Lock Intake Valve 2.250" x 5.250" O.A.L
AFR #755311/32" Bead Lock Tulip Exhaust Valve 1.760" x 5.050" O.A.L
AFR #8000PAC Racing Springs 1.550" OD Solid Roller Dual Valve Drag Race Spring 220 lbs. on seat, .680" maximum lift Max RPM 7200-7400 (upgrades available)
AFR #8002PAC Racing #1940 1.550" OD Hydraulic Roller Dual Valve Spring 175 lbs. on seat, .725" maximum lift Max RPM 6500-6700
AFR #851110° Manley Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D
AFR #901010° 11/32" Beadlock Valve Keepers with lashcap recess
AFR #6407ARP 7/16" Rocker Studs Intake
AFR #6108Adjustable 3/8" Guide Plates
AFR #661111/32" Viton Valve Seals
AFR #8048Hardened Valve Spring I.D Locator 1.550" O.D x .780" I.D
AFR #9065Intake Valve Seats 2.450" O.D x 1.950" I.D x .375" Deep
AFR #9066Hardened Valve Spring I.D Locator 1.550" O.D x .780" I.D
AFR #904611/32" Bronze Valve Guides .531" O.D x 2.250" O.A.L

Specifications & Features:
A356 AluminumMaterial
270ccIntake Port Volume
2.230" H x 1.815" W x .525 RadiusIntake Port Dimension
StockIntake Port Location
132ccExhaust Port Volume
1.830"H x 1.600"WExhaust Port Dimension
StockExhaust Port Location
75cc or 88ccCombustion Chamber Size
Perimeter BoltValve Cover Bolt Pattern
14° Intake/8° ExhaustValve Angle
1.750" O.DValve Spring Pocket Diameter
1.750" O.DMax Valve Spring Pocket Machining
.750"Deck Thickness
4.360"Minimum Bore Diameter
3.225 sq. in. Minimum Cross Sectional Area
14mm x .750" w/Gasket SeatSpark Plug Dimensions

Recommended Components:
AFR #6893Intake Port Gasket
Important: Do not port match your intake manifold to Fel-Pro gasket as it does not precisely fit AFR heads.
AFR #6891Exhaust Port Gasket, Fel-Pro #1420
AFR #6892Head Gasket, 4.500 Bore, Fel-Pro #1018
AFR #6340Head Bolts, ARP #155-3603
AFR #6341Head Studs, ARP# 155-4202 12 Point
AFR #6320Head Bolt Washers, Manley
AFR #6209Stud Girdle
AFR Single Plane, AFR# 4992 or 4993Suggested Manifold
Autolite 3932Spark Plug Starting Range

 

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