As topic says, I am after any info on the differences in intake port shape/design between the early EVO's and later EVO's (namely EVO 7).

Would an EVO 7 intake manifold bolt up to an EVO 1-3 head? (Yes, I am aware of the different orientation of EVO 7 manifold).

Also, what are, if any, the differences between an early EVO head intake ports and a 1G DSM head intake ports.

Any information and/or pics will be greatly appreciated.

Thanks in advance,

Charlie.

charlies@optushome.com.au