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Gen 2 Hemi piston identification #2822608 09/19/20 01:55 PM 09/19/20 01:55 PM
Joined: Jan 2006 Posts: 177 Suffolk,VA D dragracedr OP member
dragracedr OP member D Joined: Jan 2006 Posts: 177 Suffolk,VA	I found a set of 4.5 bore Hemi pistons,P4876020, for a later build. I can't find the nominal compression specs for these after checking old MP catalogs and on line search. Dose anyone know what the advertised compression ratio would be?

Re: Gen 2 Hemi piston identification [Re: dragracedr] #2822724 09/19/20 08:33 PM 09/19/20 08:33 PM
Joined: May 2004 Posts: 12,388 Taxes & Virus's R-US, NY Dragula I Live Here
Dragula I Live Here Joined: May 2004 Posts: 12,388 Taxes & Virus's R-US, NY	Are you sure the last number is a 0 and not a 6? http://www.moparonlineperformance.com/product-p/p4876026.htm '70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft) https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car) https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car) https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9) '66 Barracuda AWB Stretched nose Blown 440 Car in build stage '71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph https://www.youtube.com/watch?v=Znuo3jMUXTk

Re: Gen 2 Hemi piston identification [Re: Dragula] #2822911 09/20/20 01:30 PM 09/20/20 01:30 PM
Joined: Jan 2006 Posts: 177 Suffolk,VA D dragracedr OP member
dragracedr OP member D Joined: Jan 2006 Posts: 177 Suffolk,VA	No, unfortunately. The last number is a zero. I'm thinking these may be crate hemi pistons.

Re: Gen 2 Hemi piston identification [Re: dragracedr] #2822942 09/20/20 03:07 PM 09/20/20 03:07 PM
Joined: Jan 2003 Posts: 3,504 DFW M mr_340 master
mr_340 master M Joined: Jan 2003 Posts: 3,504 DFW	Selling new in the box part number P4876020 MOPAR 4.5 bore 4.15 stroke 12.5 to 1 HEMI pistons (set of 8). This makes 528ci. VROOM!! Comes with pins. 1.031" Floyd Lippencott IV

Re: Gen 2 Hemi piston identification [Re: mr_340] #2822960 09/20/20 03:57 PM 09/20/20 03:57 PM
Joined: Jan 2006 Posts: 177 Suffolk,VA D dragracedr OP member
dragracedr OP member D Joined: Jan 2006 Posts: 177 Suffolk,VA	thank you very much!

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