More twin cam conversion ?'s.....

[FST4RD]

So reading through pages and pages of info I just want few questions answered that i couldn't find the answer to.

I understand that the VR4 head is a straight fit up with respects to bolting it into place, but the Evo and RVR heads aren't just a place on top of the block and tighten down, you have to drill a bit and grind a bit, is this right???

Plus if I get an RVR head and front plate with the CAS on the front is this going to be fine??

Has anyone whose done the twincam conversion used an Evo 1-3 turbo manifold and evo 4+ intake manifold instead of customing up everything??? does this work???

Sorry if these questions have been covered, i'm just trying to work out what parts I have and what I need to get.....

[FST4RD]

Anyone??

[rallidave]

mate the evo 1-3 turbo manifold can be used, see mrb1 , he sells an awesome hiflowed manifold
dont think an evo 4 inlet would work but i havent done the conversion, meek or beyond the limit have good custom inlets for vr4,
not sure either about the CAS sorry, not much help at all really am i?

best wait for a post by barney, starion vr4 or the like, they are the gurus :D

[toysrus]

You have to drill out the Head stud holes in the Evo 1-3 Heads an extra 1mm to then be able to use the 1G Headstuds which bolt onto the Starion Block.

The bolt positions may be different on the Evo 4-8 Manifolds, the Ports may be spaced out differently also making a 'Flange swap' impossible also, not sure but worth looking into if it opens the market for possible alternatives available :)