Piston Tech.

[flyin ryan]

Thought you guys might find this interesting. this is a mock-up/checker piston for a Comp. Elim. car i'm building the engine for. we have to squeeze the compression so hard i'll have a semi-finished piston sent to me so i can mock-up, then i tell the piston manufacturer exactly what i want/need for valve to piston clearance. notice this piston has no upper ring lands yet.
http://i228.photobucket.com/albums/ee142/flyinryan_ZR1/IMG_1048.jpg

[flyin ryan]

http://i228.photobucket.com/albums/ee142/flyinryan_ZR1/IMG_1050.jpg
http://i228.photobucket.com/albums/ee142/flyinryan_ZR1/IMG_1051.jpg

[XfireZ51]

FR,

Very impressive. Huge intake valve! Do you do the machining?

[QB93Z]

Thanks for posting the pics. I always wondered how that is done.

Jim

[flyin ryan]

sorry the pics didn't turn out as good as i would have liked, i tried with the flash on & off:dontknow:. i should have also mentioned this piston is for a Sm. Blk. Chev. with Chevrolet Splayed Valve Bow-Tie heads. have to have a GM part number to be NHRA accepted/legal in the class (C/SMA). i'm not crazy about the valve sizes but on this particular set of heads it wasn't my call, i got what i got:cool:. Intake is 2.20" Dia. w/7mm stem. Exhaust is 1.625" Dia. w/.3125" stem. i generally do my own machining just for the fact i want things the way i want them. on this set of pistons i am working with really good guys that do/understand exactly what i want, so i'll very little to do in the way of machining, which is kinda nice for a change.