Page 3 of 3
Posted: Mon Aug 24, 2009 6:21 pm
by spartanv8
Thank you very much Sidecar. Just as a matter of interest would I have the 4 outer holes in a P6 block if they are a later addition that has now been discontinued?
Fil
Posted: Mon Aug 24, 2009 7:25 pm
by poo slinger
you will have the holes, but i don't think they are nessicarry even if you have a 14 bolt head, only use 10 of them
Posted: Mon Aug 24, 2009 7:52 pm
by spartanv8
So have the blocks always had 14 holes but only 10 were used to start with and then 14 and now back to 10?
Fil
Posted: Tue Aug 25, 2009 12:27 pm
by CastleMGBV8
Fil,
3.5.3.9 & 4.2 all had 14 bolts for the heads but the recommendation was that if the outer row of bolts were fitted that they should not be fully torqued but just pinch tightened,
The later 4.0 & 4.6 engines only have 10 bolts for the heads.
Kevin.
Posted: Tue Aug 25, 2009 6:24 pm
by spartanv8
Thanks Kevin
Is that because the 14 head bolts worked with the Buick engine and heads? Just wondering really!!
Fil
Posted: Tue Aug 25, 2009 6:35 pm
by CastleMGBV8
No they had the same problem.
Kevun.