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low deck pistons availability #2973527 10/12/21 02:51 PM 10/12/21 02:51 PM
Joined: Dec 2007 Posts: 148 Raleigh, NC Y Youngblood OP member
Youngblood OP member Y Joined: Dec 2007 Posts: 148 Raleigh, NC	I have a 400 getting stroked right now. Block was standard bore, but did not clean up at .030, so my brand new pistons will not work. 4.150 crank, 6.76 rods with .990 pins, looking for flat top or small dish in 040,050,055 now. Anyone carry this in forged shelf piston? Thanks for any direction

Re: low deck pistons availability [Re: Youngblood] #2973543 10/12/21 03:15 PM 10/12/21 03:15 PM
Joined: Mar 2003 Posts: 9,099 Rogue River, OR Jeremiah master
Jeremiah master Joined: Mar 2003 Posts: 9,099 Rogue River, OR	Can you go .033 over and be at 4.375?

Re: low deck pistons availability [Re: Youngblood] #2973547 10/12/21 03:27 PM 10/12/21 03:27 PM
Joined: May 2019 Posts: 161 W. Pa U usp4u member
usp4u member U Joined: May 2019 Posts: 161 W. Pa	Doesn't 440 Source keep .035/.040/.042 on the shelf?

Re: low deck pistons availability [Re: Youngblood] #2973559 10/12/21 03:59 PM 10/12/21 03:59 PM
Joined: Jul 2009 Posts: 490 IL E EchoSixMike mopar
EchoSixMike mopar E Joined: Jul 2009 Posts: 490 IL	How many cylinders didn't clean? Sleeve it? Icon had all manner of pistons listed, but just checking their online catalog and they seem to have deleted a bunch. Might just be a technical error on their website, IDK. S/F....Ken M

Re: low deck pistons availability [Re: Youngblood] #2973604 10/12/21 04:53 PM 10/12/21 04:53 PM
Joined: Jan 2003 Posts: 2,094 central texas K krautrock top fuel
krautrock top fuel K Joined: Jan 2003 Posts: 2,094 central texas	looks like you're setup is for the Mahle piston with 1.12 compression height. I don't think there are many pistons for that combo... 4.35 and 4.375 bore. Last edited by krautrock; 10/12/21 04:57 PM.

Re: low deck pistons availability [Re: krautrock] #2973633 10/12/21 06:08 PM 10/12/21 06:08 PM
Joined: Nov 2003 Posts: 1,837 NW Indiana F fbs63 top fuel
fbs63 top fuel F Joined: Nov 2003 Posts: 1,837 NW Indiana	Ross used to make a piston for that in 4.390 bore.

Re: low deck pistons availability [Re: fbs63] #2973645 10/12/21 07:04 PM 10/12/21 07:04 PM
Joined: Jan 2003 Posts: 6,136 Melbourne , Australia LA360 master
LA360 master Joined: Jan 2003 Posts: 6,136 Melbourne , Australia	Originally Posted by fbs63 Ross used to make a piston for that in 4.390 bore. A friend had a set of Ross pistons for a the same or similar combo. Not sure if he still has them. Alan Jones

Re: low deck pistons availability [Re: Youngblood] #2973682 10/12/21 08:27 PM 10/12/21 08:27 PM
Joined: Dec 2016 Posts: 1,111 Usa A A39Coronet super stock
A39Coronet super stock A Joined: Dec 2016 Posts: 1,111 Usa	Call Diamond and see what they have. They gave me a one dimensional change for free and it ended up being a modified shelf Chevy piston. Didn't cost anything. Follow my G3 Hemi Barracuda build on Youtube https://www.youtube.com/watch?v=XSDAWczXoZw&list=PLTus_wQu8POADHEeJNJp2nr4NMHEyB9EK 2015 Tri-State Stock Super Stock Champion 2017 Monster Mopar Pro Winner 2018 Monster Mopar No Box Winner

Re: low deck pistons availability [Re: Youngblood] #2973862 10/13/21 11:04 AM 10/13/21 11:04 AM
Joined: Oct 2006 Posts: 596 Mass. 8 80fbody mopar
80fbody mopar 8 Joined: Oct 2006 Posts: 596 Mass.	I ran into same issue on my 400/470 build this year. My block was about .033 over after last hone. Couldn't find pistons easily. Ended up using a 2nd block which turned out to be cracked. Finally found a 3rd and that's so far so good but not out of the shop yet. Was supposed to be done and running in July. Just painful.

Re: low deck pistons availability [Re: Youngblood] #2974157 10/13/21 10:24 PM 10/13/21 10:24 PM
Joined: Jan 2003 Posts: 9,985 Frostbitefalls MN (Rocky&Bullw... gregsdart master
gregsdart master Joined: Jan 2003 Posts: 9,985 Frostbitefalls MN (Rocky&Bullw...	[quote=Youngblood]I have a 400 getting stroked right now. Block was standard bore, but did not clean up at .030, so my brand new pistons will not work. 4.150 crank, 6.76 rods with .990 pins, looking for flat top or small dish in 040,050,055 now. Anyone carry this in forged shelf piston? Thanks for any direction [/quote I had a Megablock 4.500 bore rehoned, scratches didn't disappear till 4.5043. I had my old CP pistons coated by Line2Line. Cost $300 but worked great. 550 inch with 440-1 heads made 926 hp using those coated pistons. They coat them within .0025 of actual bore size, then run the motor through a breakin procedure in several steps. I believe in L2L. Coatings. They say they can make up as much as .020 overbore if needed. Call them and discuss your situation. 8..603 156 mph best, 2905 lbs 549, indy 572-13, alky

Re: low deck pistons availability [Re: gregsdart] #2974204 10/14/21 07:00 AM 10/14/21 07:00 AM
Joined: Oct 2006 Posts: 596 Mass. 8 80fbody mopar
80fbody mopar 8 Joined: Oct 2006 Posts: 596 Mass.	I really wanted to do that but my shop was worried about it being consistent and not coming off being so thick. Good to hear. I may do that on my .033 over block at some point.

Re: low deck pistons availability [Re: 80fbody] #2974219 10/14/21 08:13 AM 10/14/21 08:13 AM
Joined: Apr 2011 Posts: 1,520 West Palm Beach, Florida Copper Dart pro stock
Copper Dart pro stock Joined: Apr 2011 Posts: 1,520 West Palm Beach, Florida	Common sense, the least common of all the senses. Mom. For fear of ridicule, society stifles creativity. Ricky Valdes

Re: low deck pistons availability [Re: fbs63] #2974264 10/14/21 10:37 AM 10/14/21 10:37 AM
Joined: Jan 2003 Posts: 2,094 central texas K krautrock top fuel
krautrock top fuel K Joined: Jan 2003 Posts: 2,094 central texas	Originally Posted by fbs63 Ross used to make a piston for that in 4.390 bore. i only see the 1.12ch ross piston in a 4.375 bore in the catalog. I emailed them about some of the 383 pistons in the 1.307ch and to get smaller dish or a 4.29 bore would've made it a custom piston. about $1100. The OP might be in the situation. https://www.rosspistons.com/wp-content/uploads/2016/08/RossPistons-Catalog.pdf

Re: low deck pistons availability [Re: gregsdart] #2974271 10/14/21 11:05 AM 10/14/21 11:05 AM
Joined: Jan 2004 Posts: 8,233 fredericksburg,va C cudaman1969 master
cudaman1969 master C Joined: Jan 2004 Posts: 8,233 fredericksburg,va	Originally Posted by gregsdart [quote=Youngblood]I have a 400 getting stroked right now. Block was standard bore, but did not clean up at .030, so my brand new pistons will not work. 4.150 crank, 6.76 rods with .990 pins, looking for flat top or small dish in 040,050,055 now. Anyone carry this in forged shelf piston? Thanks for any direction [/quote I had a Megablock 4.500 bore rehoned, scratches didn't disappear till 4.5043. I had my old CP pistons coated by Line2Line. Cost $300 but worked great. 550 inch with 440-1 heads made 926 hp using those coated pistons. They coat them within .0025 of actual bore size, then run the motor through a breakin procedure in several steps. I believe in L2L. Coatings. They say they can make up as much as .020 overbore if needed. Call them and discuss your situation. You had me hoping there at first till the last paragraph. Mine is 4.53 I can find quite a few used sets at 4.5. I’ve looked on most all sites and no one stocks .030 over for some reason.

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