heads

[Beasty306GT]

Does anyone know what size studs and roller rockers i need for SVO gt 40 aluminum heads? i was wonder what my options are i just dont know what size stud i need..

 

[cenok is family]

arent they 3/8" studs? i dont remember exactly, someone more knowing will chime in.

 

[Mr. Rustypwnz]

what svo heads? my heads were pedestal mount..

 

[Beasty306GT]

i believe there the x heads

 

[Mr. Rustypwnz]

well they should be the 7/16 pedestal stock stuff, unless someone drilled em for studs..

 

[Beasty306GT]

there brand new heads..all the pedistal mounts are 5/16..i cant find any 7/16

 

[robo]

they use standard ford svo style 5/16 bolt down rocker arms.

several manufacturers make them to fit.

 

[Beasty306GT]

do u know is they should be 1.6 or 1.7ratio

 

[Beasty306GT]

does anyone know if they require guideplates?

 

[Mr. Rustypwnz]

no guideplates its a pedestal mount head, go with whatever rockers you want really, just dont hit the valves on the pistons.. basically those are factory heads just bigger ports and aluminum, so every screw goes back together like a stock E7..

yes they are 5/16's, however the head bolts are 7/16, lol..

 

[JJ95GTID]

SVO aluminum X, Y and Z heads have a 1/2" hole to fit 351W blocks.
So, to install on a stock 302W block you need to buy the 7/16" head bolt or head stud kit with the spacers that fill the gap of the larger 1/2" hole.