Quote Originally Posted by sebastianHoff
see heres the thing, your wrong. i have an rb25 in an s14 without modifying the hood at all. now the 25 is about 6" taller than a 26 due to the intake running across the top of the valve cover. if i can drop the larger motor the 3.2cm so it and factory intake will clear the hood, then you shouldnt have to drop the motor or cut the hood. now if you cheaped out and used the skyline cross member then your on your own. if your serious about doing this and you have a spare 25 head you should use it on your conversion. it will flow enough air to support 1100hp without having work done, the beauty of normal aspiration.

the more i think about it the more i want to keep the single cam head, dont know why just think it might be cool.
What motor mounts are you using? I have Mckinney motorsports, and everyone I have talked to has told me there will be clearance issues with the hood at the frontmost part of the engine, where the curvature of the hood becomes a slight problem.

As far as the head, I don't want to use the RB25DET head since the RB26 head flows better (and the 272 HKS cams I have for it also). I want to get the best HP gains, at minimal boost since this will be a street car.

Also, Part of the reason I am going single turbo is the downpipe issues on the rb26's.

Thanks for your advice, and I would love to do an RB30 bottomend, but at 38MM higher deck height the front of the hood will deffinately have some issues with the mounts I am using.