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F440 HP piston question #2288320
04/15/17 05:11 PM
04/15/17 05:11 PM
Joined: Apr 2005
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Southeast PA
5wndwcpe Offline OP
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Did all '70 440 HP motors have pistons with valve reliefs or just the six packs ?


1968 GTX hardtop
1968 Sport Satellite Convertible 383/4spd
1933 Plymouth coupe
2002 Ram 2500 oil burner 4x4
2015 Grand Cherokee
2013 Challenger
1957 Chrysler Saratoga


Man...I need a bigger freakin' garage.
Re: F440 HP piston question [Re: 5wndwcpe] #2288447
04/15/17 09:53 PM
04/15/17 09:53 PM
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northwest USA
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NANKET Offline
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northwest USA
6bbl only. 4bbl were flat top.

Re: F440 HP piston question [Re: 5wndwcpe] #2288462
04/15/17 10:11 PM
04/15/17 10:11 PM
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Vancouver, WA
Cuda Cody Offline
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And 440+6 packs were supposed to have special cranks too. You can read about it here (Section 8 "Engine" of the Service Training Manual, Page 5, 2nd bullet):

http://www.e-bodies.org/resources/service-manuals-parts-catalogs-tsb/


"All 440 engines have same crankshaft, except 440-6 BBL, which has shot peened journal fillets. This is identified by surface texture of fillet and portions of counterweight."




1970 Challenger T/A 4-Speed
1970 Challenger T/A 4-Speed
1970 Challenger T/A Auto
1970 Challenger R/T Auto
1970 Challenger Auto
1970 Challenger RT 440+6 4-Speed
1970 Challenger RT 440+6 4-Speed
1970 Hemi Challenger 4-Speed
1970 Hemi Cuda 4-Speed
1971 Cuda Auto
1971 Cuda 4-Speed
LOOKING to BUY 1970 & 1971 E Body J, V and R Code project cars
Re: F440 HP piston question [Re: 5wndwcpe] #2288692
04/16/17 11:58 AM
04/16/17 11:58 AM
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Posts: 6,363
Abilene, Texas
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fastmark Offline
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69 440 six pack had the same part number in the parts book. From my experience of taking original motors apart of both years, the FORGING number on both cranks was 2208160 ( from my memory) I have found that same number in a couple of other motors, on 69-70 only. I believe they chose that forging to shot peen for the 6 pack motors. I bet that same shot peened crank found its way into a few non six pack motors as well.

Re: F440 HP piston question [Re: Cuda Cody] #2288891
04/16/17 04:11 PM
04/16/17 04:11 PM
Joined: Apr 2005
Posts: 1,528
Southeast PA
5wndwcpe Offline OP
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5wndwcpe  Offline OP
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Southeast PA
Originally Posted By Cuda Cody
And 440+6 packs were supposed to have special cranks too. You can read about it here (Section 8 "Engine" of the Service Training Manual, Page 5, 2nd bullet):

http://www.e-bodies.org/resources/service-manuals-parts-catalogs-tsb/


"All 440 engines have same crankshaft, except 440-6 BBL, which has shot peened journal fillets. This is identified by surface texture of fillet and portions of counterweight."




Nice link, thanks Cody and all who replied.


1968 GTX hardtop
1968 Sport Satellite Convertible 383/4spd
1933 Plymouth coupe
2002 Ram 2500 oil burner 4x4
2015 Grand Cherokee
2013 Challenger
1957 Chrysler Saratoga


Man...I need a bigger freakin' garage.
Re: F440 HP piston question [Re: NANKET] #2289007
04/16/17 07:57 PM
04/16/17 07:57 PM
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Sacramento CA
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Morty426 Offline
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Originally Posted By NANKET
6bbl only. 4bbl were flat top.


Yep!

Re: F440 HP piston question [Re: 5wndwcpe] #2289030
04/16/17 08:29 PM
04/16/17 08:29 PM
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cdp Offline
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I thought heavy rod motors (70-72HP motors) had a tall compression height piston, IE, FM-2355 "sixpack" piston? As the "stock replacement" FM- 2266 piston is below deck quite a bit.

Reason I'm asking, friend is rebuilding his original motor in his super bird and though it had been rebuilt, it had cast pistons without valve reliefs and pentastars on the inside of the pistons.

Getting ready for assembly, he's got the 6-pack, 2355 pintons ready to be installed.

Re: F440 HP piston question [Re: 5wndwcpe] #2289094
04/16/17 10:45 PM
04/16/17 10:45 PM
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Abilene, Texas
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They do.

Re: F440 HP piston question [Re: cdp] #2297093
05/01/17 01:08 PM
05/01/17 01:08 PM
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U.S.S.A.
JohnRR Offline
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JohnRR  Offline
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Originally Posted By cdp
I thought heavy rod motors (70-72HP motors) had a tall compression height piston, IE, FM-2355 "sixpack" piston? As the "stock replacement" FM- 2266 piston is below deck quite a bit.

Reason I'm asking, friend is rebuilding his original motor in his super bird and though it had been rebuilt, it had cast pistons without valve reliefs and pentastars on the inside of the pistons.

Getting ready for assembly, he's got the 6-pack, 2355 pintons ready to be installed.


If it's not a 6pk motor it didn't have valve reliefs and was lower in the bore than the 6pk motors.


running up my post count some more .
Re: F440 HP piston question [Re: JohnRR] #2297695
05/02/17 12:55 PM
05/02/17 12:55 PM
Joined: Feb 2003
Posts: 8,020
Pangaea
B5 Bee Offline
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Pangaea
IIRC, blueprint specs for '70 are,
piston pin height, 2.06" 6bbl and 2.03" 4bbl
deck height, -.001" 6bbl and -.030" 4bbl







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