750cc engines

[Anvil*]

Searching for specifications on DOHC 750cc heads for 3 & 4 cylinder engines (VFR, GSXR, ZX..). Valves, port sizes, flow numbers... On-line searches have been rather fruitless and no one currently porting motorcycle heads knows me well enough...
Since the first suggestion on a possible class to run was J/GL I've more than a few blanks to fill and much to learn.

[Stainless1]

That technology improvement thing.... did you know the GSXR 1000 head fits the 750?  Don't know about the latest models, but the 01-03 ones do.  You might try Lazer Mike, http://www.lazerporting.com/services.htm    He is friendly with LSR.

[Larry Forstall]

The only current 750 is the Suzuki GSXR. It was updated as recently as last year. Any other engine choice would be old technology which would require tons of $$ to try to make it as good as a stock 2008 GSXR. Should be plenty available as young riders tend to bounce them down the road. For cylinder head porting www.enginedynamics.com in Petaluma in not far away. They have forgotten more than most will ever know. Hope this helps.   Larry

[Anvil*]

Stainless1: I'll add the 1000 head to the mix, very good to know.

Larry/Stainless1:
Thank you both for the contact suggestions.

For land speed I don't see any engine as state of the art. The rods, cams, valves, valve springs, and pistons are wrong for peak horsepower over a limited time period. There are often cooling problems too (hot spots that can limit power).

All this is for a back of the napkin engineering study to find the engine most adaptable to a series of modifications. I'm just starting to open this can of worms to look inside. SCCA, AMA, and AFM put much stricter limits on engine modifications.

[Stainless1]

Anvil, breathing is the most important quality, engines are just air pumps, you want the most effiecint pump to make the most HP per cube.  All the other stuff can be dealt with. 
Whatever you decide to do, have fun doing it, of course you want a record, but getting there is a large part of the fun.

[Anvil*]

Having some fun already just starting to put the numbers together. By fall I hope to have three or four engines modeled and start pushing the RPM at peak horsepower up.  750cc should reach 200Hp

[octane]

....getting there is a large part of the fun.

Amen to that!