Head compatibility question..........

302RollinHard

New Member

Sep 26, 2005

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Columbus, OH

Jul 6, 2006

#1

• Jul 6, 2006

• #1

I am contemplating picking up a 351W (non roller) for having when I just need more than a 302 can give me. Will the heads I have (Holley SystemaxII) be compatible with a 351 non roller block? I would think they would be, but am not sure. I am thinking all I would have to change from the systemax kit would be the cam, correct?

 

B

blackdoutstang

New Member

Jul 1, 2006

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coleman,michigan

Jul 6, 2006

#2

• Jul 6, 2006

• #2

ONE THING TO LOOK FOR IS WINSOR HEAD BOLTS ARE LARGER IN DIAMETER.

 

FORCED2DV8

New Member

Jun 6, 2005

458

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0

Grand Rapids MI

Jul 6, 2006

#3

• Jul 6, 2006

• #3

larger bolts, and you need a 351 lower intake, its wider than the 302, and distributor needs some modding unless you get a different one.

 

LEE93COBRA

New Member

Apr 12, 2000

1,929

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0

Alabama

Jul 6, 2006

#4

• Jul 6, 2006

• #4

as mentioned 351W's use 1/2" head bolts. Most aftermarket heads are already drilled out for this but no big deal if yours are not. Just take them to a machine shop and have them enlarged