1956 Chevrolet 265-225hp Stock Legal Piston

Chad E532 · 11-09-2010, 06:22 PM

Does anyone know of a piston manufacturer that has a stock legal piston for the 225hp 265? I cannot find one in the NHRA guide, but would think that someone is making them for the IHRA folks.

Thanks
Chad

Alan Roehrich · 11-09-2010, 07:00 PM

If it is not on the NHRA list, it is not an NHRA approved part, even if IHRA has approved it. So, no matter what, if you want to race NHRA Stock Eliminator, you have to go through the replacement piston approval process.

Chad E532 · 11-10-2010, 09:22 AM

Thanks Alan, that is what I was figuring but it never hurts to ask.

Chad

Steve Hurley · 11-11-2010, 08:23 PM

Chad- call diamond piston, the part number is 265-195. they are ihra approved, we had them made in 2008. all that is left to do is to get them nhra approved.

Chad E532 · 11-12-2010, 11:00 AM

Thanks Steve!

X-TECH MAN · 11-12-2010, 06:41 PM

Quote:

Originally Posted by Chad E532

Does anyone know of a piston manufacturer that has a stock legal piston for the 225hp 265? I cannot find one in the NHRA guide, but would think that someone is making them for the IHRA folks.

Thanks
Chad

IHRA has a different piston rule for stock in the last several years. Only the top (combustion chamber side) of the piston has to "LOOK" correct when viewed from an assembled short block. The dish/dome still have to measure correct. They dont care what it is like below the deck (moved rings, thinner ring pack, lite pins, lite pistons, valve relief location and depth, etc.). They DO NOT want to look at a piston and rod out of the engine. Sometimes they do want to have an oil pan removed to eyeball the crank.

11-09-2010, 06:22 PM	#1
Chad E532 Member Join Date: Jul 2008 Location: Lindstrom MN Posts: 156 Likes: 7 Liked 54 Times in 7 Posts	1956 Chevrolet 265-225hp Stock Legal Piston Does anyone know of a piston manufacturer that has a stock legal piston for the 225hp 265? I cannot find one in the NHRA guide, but would think that someone is making them for the IHRA folks. Thanks Chad

11-09-2010, 07:00 PM	#2
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,113 Likes: 1,571 Liked 1,821 Times in 413 Posts	Re: 1956 Chevrolet 265-225hp Stock Legal Piston If it is not on the NHRA list, it is not an NHRA approved part, even if IHRA has approved it. So, no matter what, if you want to race NHRA Stock Eliminator, you have to go through the replacement piston approval process. __________________ Alan Roehrich 212A G/S

11-10-2010, 09:22 AM	#3
Chad E532 Member Join Date: Jul 2008 Location: Lindstrom MN Posts: 156 Likes: 7 Liked 54 Times in 7 Posts	Re: 1956 Chevrolet 265-225hp Stock Legal Piston Thanks Alan, that is what I was figuring but it never hurts to ask. Chad

11-11-2010, 08:23 PM	#4
Steve Hurley Junior Member Join Date: Nov 2010 Posts: 22 Likes: 9 Liked 4 Times in 2 Posts	Re: 1956 Chevrolet 265-225hp Stock Legal Piston Chad- call diamond piston, the part number is 265-195. they are ihra approved, we had them made in 2008. all that is left to do is to get them nhra approved.

11-12-2010, 11:00 AM	#5
Chad E532 Member Join Date: Jul 2008 Location: Lindstrom MN Posts: 156 Likes: 7 Liked 54 Times in 7 Posts	Re: 1956 Chevrolet 265-225hp Stock Legal Piston Thanks Steve!