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Old 10-19-2009   #1 (permalink)
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SVO Heads

I need some information on some SVO heads I have they are aluminum and I am planning on installing them on a 393 stroker motor But I am not haveing much luck with information on them they have a part # of M6049X302 I would love to Know if they are 58 cc 64cc if they are good heads average heads what they are worth ect All I can find is they were probably off a cobra car they are in good condition but if I wanted to port would it be worth doing or better off left alone what would be a good intake and cam to run with these ???
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Old 10-19-2009   #2 (permalink)
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Re: SVO Heads

Those are GT-40X heads w/64cc combustion chambers

http://www.1fordracing.com/parts/par...tKeyField=2600

-------- added 0 Minutes and 29 Seconds later --------

TECH NOTES
M-6049-X302* Bare Head (64cc Chamber)
M-6049-X303* Complete Head (64cc Chamber)
M-6049-X304* Bare Head (58cc Chamber)
M-6049-X305* Complete Head (58cc Chamber)
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

Unlike some aftermarket heads our GT-40 heads use either GT-40 or aftermarket performance: intake manifolds, headers, and valve covers.

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

Head assembly consists of bare head M-6049-X302/X304 and GT-40 valve train kit M-6090-X302 featuring stainless steel valves. The valve springs are compatible with all Ford Racing roller camshafts. See page 99 for complete list of valve train components.


INSTALLATION NOTES:

Will not fit 1986 5.0L with flat-top pistons unless pistons are notched for valve relief

Must use head bolt kit M-6065-D289 to install cylinder heads on 289/302 blocks or head bolt and head gasket kit M-6051-A50 and intake gasket M-9439-A50/A51

Check rocker arm clearance to valve springs with production rocker arms

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
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Old 10-19-2009   #3 (permalink)
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Re: SVO Heads

here is a head flow chart for them, (and some others) they are way better then stock but as far as aftermarket heads go AFR, TFS, etc are better.

I would like to pick up a set of the 64cc. they are good heads just depends on what your trying to do with them. Not gonna "light the world on fire" with them or set new world records but a good head none the less
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Old 10-19-2009   #4 (permalink)
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Re: SVO Heads

thoose are to small for a 393. they will choke the shit out of it
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Old 10-19-2009   #5 (permalink)
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Re: SVO Heads

Quote:
Originally Posted by jsam View Post
thoose are to small for a 393. they will choke the shit out of it
x2 I missed the 393w part... Im a dumbass lol!!!

thats a lot of CI for a small head
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