1.4 bottom end 1.2 top end???????

[rudeboy69r]

will this work? because i have a 1.4 bottom end but only a 1.2 top end.. will i need like other things like manifold and carb n stuff.. can enyone tell me what i need to do?
thanks
liam

[Ste L]

that will work, 1.2head is a better design than the 1.4 aswell, so will get a slight increase in power

[Adam]

You might need to calculate the compression ratio, it might push compression up quite a bit.

[rudeboy69r]

whats the compresion ratio about..and will it do anything ifs it rong?

[Adam]

Ye, i think it could cause detonation and melt a piston or two :D Lol

It may be safer to use a 1300 head.

[Ste L]

Ads, its a common route using a 1200 head on a 1.4 bottom..

[Adam]

Ok, cool :)

[Ste L]

its basically the same as a 1300 head, but better than the 1.4 carb, hence why its used ;)

[Adam]

You'll also need a 1.3SR inlet.