vn-vt 304 heads

[sxi ss]

hi just wondering is there are any differences in these heads from the vn to the vt or in between , or are they all the same ?

[greenfoam]

The combustion chambers are a little different on the VT, otherwise they are the same. Some people say the early ones are better quality etc but they are the same

[dirt drifter]

different as in better or are they much the same?

on another note, welcome back foamy! its about bloody time

[AirStrike]

The combustion chambers are a little different on the VT, otherwise they are the same. Some people say the early ones are better quality etc but they are the same

Foamy you might remember, because I can't, but doesn't the chamber design change the CC's of the heads? I think it lowers the comp if used on a VN-VS...........or raises it I can't remember! I do know how ever that they are different.

[immortality]

The VT heads have the heart shaped combustion chambers which if i remember correctly means it's a few cc's less (more comp) then the VN-VS heads. They do say that the VT heads suffer more from core shift though.

welcome back Foamy

[greenfoam]

They have less cc's as far as I can remember too so a bit more compression also I'd expect the chamber shape burns a little faster. No one was making new shapes in those times without them being a bit faster burn. I'm sure the exact specs are archived on one of the forums with some searching

Hello Striker and Immortality

[AirStrike]

Thought I had it somewhere, VN-VS heads are 64cc and VT are 58cc.

[sxi ss]

So am I better to freshen up my vr heads or find some by heads I'm also changeing the amateur the same time

[Munz]

Might need to start with a call to the 'reading & writing hotline' and go from there!!!!!


1300655506


I think

[sxi ss]

Sorry predictive txt on my phone took over was supposed ask weather to use my vr heads or get some vt heads and that I will be changing my cam at the same time

[Munz]

Your heads FTW

save your cash and have them ported/CC'd

[GTS69]

yeah your not going to get much from the VT heads at all just spend more on yours.

And good to see your alive Jason fyi i still dont have the GTS back going for paint job number 5 hahaha

[baza]

yeah welcome back GREENFOAM . i had a look in the " 60 years of holden " book and the vn 5 ltr has 8.4:1 comp and the vt 5 ltr has 8.8:1 compression ratio