1.3 head on a 1.2 with extra mods...

[drivebyracing]

Just wondering guys if anyone knows if the following will work, ive been told it does:
putting a 1.3 head onto my 1.2 engine? ive been told they go like stink, bearing in mind my other mod are a full stainless 2inch right through and cam kit and weber carb on order, will it all pull together? Can anyone shed light on this, as all i can find in the forums are putting a 1.2 head on a 1.4, cheers peeps

[Stuart]

leave the 1.2 head on, unless the 1.3 one has been modified, ie port polish etc.

[mowgli]

maybe stick a good camshaft and a standard 1300 4-2-1 exhaust manifold onto your 1200. don't bother with a 1300 head

[beghy]

Just wondering guys if anyone knows if the following will work, ive been told it does:
putting a 1.3 head onto my 1.2 engine? ive been told they go like stink, bearing in mind my other mod are a full stainless 2inch right through and cam kit and weber carb on order, will it all pull together? Can anyone shed light on this, as all i can find in the forums are putting a 1.2 head on a 1.4, cheers peeps


why would anyone put a 1300 head on a 1200 bottom end?

If you do the above you loose compression, its a good thing to do if your gona turbo the car as you have 8.5C/R but if you not than stick to the 1200 head. get the following and you be one hell of a hapy bruce:-

do = skimm the head (1mm if pos)
get = 14NV camshaft
get = 14NV manifold & downpipe
get = weber 32/34 on a varajet manifold(very rare)
get = any freeflowing backbox

this should give it 80bhp easily

[Snowface]

Just wondering guys if anyone knows if the following will work, ive been told it does:
putting a 1.3 head onto my 1.2 engine? ive been told they go like stink, bearing in mind my other mod are a full stainless 2inch right through and cam kit and weber carb on order, will it all pull together? Can anyone shed light on this, as all i can find in the forums are putting a 1.2 head on a 1.4, cheers peeps


why would anyone put a 1300 head on a 1200 bottom end?

If you do the above you loose compression, its a good thing to do if your gona turbo the car as you have 8.5C/R but if you not than stick to the 1200 head. get the following and you be one hell of a hapy bruce:-

do = skimm the head (1mm if pos)
get = 14NV camshaft
get = 14NV manifold & downpipe
get = weber 32/34 on a varajet manifold(very rare)
get = any freeflowing backbox

this should give it 80bhp easily

whats a varajet manifold? not heard of one and what are the benifits?

Is it a GM part?

80bhp is quite high, i'd say 70-75. If u get a kent cam then maybe 80.

[nova_rally]

Varajet was a GM own Brand Carburettor, was used on Astras.

Alan