This may be a stupid question but will this work? anyone with info or ideas please let me know. you can also email me at michaellbradley@comcast.net

Iy will fit but I'm unsure that the compression ratio will be what you are after.

There is a link to a compression program somewhere on this site. Try doing a search function above....or maybe someone could place the link on a reply.

For memory the P90a was used on turbo L28 ZX's of 83. So it is my guess that the compression ratio will be low.

Dont think that would be a great idea....CR would be 7.62:1 and you would have the crappy hydraulic lifters.

Good idea if you intend to make an L24 turbo.

L engine thingymebob.

Problem with it is that it lets you build engines that are physically impossible to make.

lengine.zip

my aim is to turn this into a turbo motor and the low compression is what I want to do. I am even considering slightly milling the head to raise it slightly to around 8:1. Isn't the p90a the early 83 head without the hydraulic lifters? Thanks y'all I appreciate the info. anything else you can provide will be appreciated.:classic:

The P-90a is the later head with hydraulic lifters...the head you want is the earlier P-90

I dont know why or where people think the P90a is a bad head, if you think so then I think you may want to talk to jeff priddy. He is making at last dyno 458 horses to the REAR WHEELS with the P90a head.

So if its not a good head then I guess something must be wrong here huh.

The P90a is a good head, its quiet and nothing is wrong with the hydraulic lifters. No adjusting, quiet and they CAN BE REBUILT!!!

Go with it and make what you want.

I say its a good choice!

I'm seriously considering this very swap on a fresh L24 bottom end I've built. The only thing I need to check is valve/block clearances.

A few people that I have talked to keep telling me that it is not possible to build a fuel injected l24 turbo with a p90 head why can't it be done? it seems like an ideal way to go. low compression, good stroke ratios why wouldn't it work. wouldn't the intake manifold from a fuel injected 280 fit to the head?

Hey professionalzcarnut please keep me updated on what you find out on the clearances. I am kind of new to this buildup and wuold appreciate any advice or info that you may have. thanks man

mike

Yes the p-90a can make great HP numbers, yes it can be rebuilt when a lifter goes bad, but I am not paying for it...And BTW if you can figure out how to get it to make power after 6k rpm.....let me know....there are quite a few engineers that cant solve that one.

Originally posted by Dtsnlvrs

Yes the p-90a can make great HP numbers, yes it can be rebuilt when a lifter goes bad, but I am not paying for it...And BTW if you can figure out how to get it to make power after 6k rpm.....let me know....there are quite a few engineers that cant solve that one.

Thats why they invented Variable Valve Timing