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-12 B Series Cylinder Heads270cc Intake Port Volume 68cc Combustion Chambers 40/60 Valve Centerline
- -12 B Series Cylinder Heads
- 40/60 Valve Spacing
- 270cc Intake Ports
- 68cc Combustion Chambers
- 2.150'' Intake / 1.600'' Exhaust Valve Sizes
- Angle Plug
- Bare, 2/pkg.
This head is sold as an unassembled bare casting. It is finished machined and includes valve guides and valve seats installed. This head does NOT include studs, valves, springs retainers or locks.
Cylinder Head Specifications - Intake Port Volume: 270cc (No Porting)
- Combustion Chamber Volume: 68cc
- Valve Sizes: 2.150' Intake / 1.600' Exhaust ( 11/32' Stem Diameter )
- Spark Plug Configuration: AngledFacts and Related Components
- Torque Heads: 70 ft-lb.
- Torque Rocker Studs: 40-45 ft-lb.
- Intake Gasket: Modified Fel-Pro p/n 375-1263
- Head Gasket: Fel-Pro p/n 375-1003 (350ci) / 375-1004 (400ci) or Cometic p/n 245-C5399 (350ci) / 245-C5403 (400ci)
- Exhaust Gasket: Brodix p/n 158-MG52464 (Trim to fit), Cometic p/n 245-C5424 (Spread Port)
- Head Studs: ARP p/n 070-234-4723 (12-point with 3/8' center studs)
- Spark Plug Specs: 14mm Thread, .750' (3/4') Reach, Gasket Seat
- Valve Angle: 15°
- Angle Milling: .0065' per cc
- Flat Milling: .0055' per cc
- Pushrod Slots: 40/60
- Stud Girdle: N/A
- Rocker Arms: Shaft System with 40/60 Spacing (Check heads for intake offset) - T&D 2206, Jesel KPS 01204
- Lifters: .180' Offset
- Pistons: Special 15°
- Pushrods: Special Length
- Intake Face Angle: 10°
- Exhaust Pattern: Spread Port - Stahl Header Flange Bolt Pattern
- Valve Centerline: 40/60
- Spring Pockets: 1.550' Out of the Box, May be cut to 1.625' - No larger or deeper
- Accessory Bolt Holes are Drilled
- Recommended Intake Manifold: Brodix MS 89 (p/n 158-MS89)
Part TypeCylinder Head
BrandBRODIX
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number1150000
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
