ref 75 302

[modxl]

hi guys just a quick question,upping compression on 1975 302,just wondered if i took 6 tho of heads and 6tho of deck total 12 tho weather i would need to machine the inlet to compensate for removed metal if i do that with 1.619 comp pistons i can get piston about .005 down the jug

cheers steve

 

[baddad457]

According to Ford you can mill a total of .040 before having to mill the intake. However.......... you should test fit the intake first before doing any intake milling. I milled a set of Canfield heads .060 (block was done .010) and milled a Vic Jr to fit. Then I used those same heads on another block and didn't have to mill the repop 3x2 intake that I used on it. I did have to enlarge the intake bolt holes to get the bolts in, milling the heads moves the intake bolt holes towards the centerline of the block

 

[modxl]

thanks mate,get it done in next few weeks,moving on slowly

steve

 

[Mac]

If I remember right, the 73-76 302's had the higher deck height, .023 above normal. Sounds like your getting back to where it ought to be.
Dave

 

[modxl]

thats the plan mate,all depends on how much i take off,,got 1.619 comp height piston in mind with 12 to 16 tho of head and deck gets me close to 0 deck