GT-40X Xtra Performance "Turbo-Swirl" Aluminum Cylinder Heads

Ford Racing "Turbo-Swirl" Aluminum Head
[M-6049-X306]

$549.00

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M-6049-X306*

THE FAST, EASY WAY TO BOLT ON 65 HORSEPOWER! TRUE BOLT-ON PERFORMANCE

For use on 289/302/351 Windsor-style engines
Improved air flow over original GT-40 aluminum heads
Intake flows approximately 240 cfm at .550" lift (at 28" of H20)
Exhaust flows approximately 170 cfm at .500" lift (at 28" of H20)
Machined for 1.94" Intake and 1.54" exhaust valve diameters
Ford racing "X" heads use either GT-40 or aftermarket performance: intake manifolds
Intake port volume 178cc, exhaust port volume 62cc
High temperature exhaust valve seats. Thick deck for improved sealing, increased section thickness in critical areas for porting, and webbed rocker bosses for improved strength. Designed for bolt-on rocker arms, machined for tapered seat spark plug or gasketed. Compatible with Ford Racing intakes, headers, and valve train components. Can be machined for diagonal exhaust header flange mounting
High quality original equipment style 356-T6 aluminum castings, machining and components
Each aluminum head weighs approximately 22 lbs. – approximately 25 lbs. lighter than each cast iron GT-40 head
These GT-40 style heads use AGSF-32C spark plugs
Each GT-40X head is leak tested prior to assembly
Assembled with M-6507-J302 intake valves, M-6505-G302 exhaust valves, M-6513-A50 valve springs The valve springs are compatible with all Ford Racing roller camshafts
Designed to be used on Ford Racing Boss blocks M-6010-BOSS302 or M-6010-B302BB block with head gasket M-6051-CP331
Check your intake manifold for port match; not all intakes are compatible due to the tall high-flow ports
Must use M-9439-A50 intake gasket
Designed for bolt-down rocker arms

SOLD INDIVIDUALLY

This product was added to our catalog on Tuesday 06 February, 2007.