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Re: Are stock HP273 pistons forged or cast?
[Re: Rhinodart]
#466750
09/13/09 11:32 AM
09/13/09 11:32 AM
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Joined: Feb 2003
Posts: 16,146 Mesa, Arizona
dart4forte
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 16,146
Mesa, Arizona
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Quote:
I have a couple 67 273 4-bbl engines apart and they are definitely forged and heavy! I also have a set of replacement forged pistons .030 over and they are real heavy!
Are you sure you don't have the L2222 TRW Forged pistons. Every HP 273 I've torn apart had the 10.5 cast piston. Also, there is a secret to lightening the HP piston. Also as a note: EGGE shows a 4 barrel piston with the L2222 part number. However, after calling them I find that the piston they offer is the cast replacement piston. Really hard to find forged pistons for the 273 without going with the major manufacturers since their pistons are custom made and run around $600-$800 a set.
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Re: Are stock HP273 pistons forged or cast?
[Re: dart4forte]
#466751
02/06/10 12:47 AM
02/06/10 12:47 AM
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Joined: Aug 2008
Posts: 21 Iowa
toolmanmike
OP
member
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OP
member
Joined: Aug 2008
Posts: 21
Iowa
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I bought a set of the Egge 10.5/1 pistons. They are cast and come with pins and clips. The +.030's are about 60 grams lighter than the stock standard bore slugs so I balanced the rotating assembly. They were all within a half a thousandth of the same size. Good stuff! Mike
Last edited by toolmanmike; 02/06/10 12:50 AM.
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Re: Are stock HP273 pistons forged or cast?
[Re: toolmanmike]
#466752
02/06/10 01:28 AM
02/06/10 01:28 AM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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they are cast and as said the pins are very heavy so the 273 piston/pin assy will weigh the same as the 318 piston/pin assy even w the smaller dia (& therefore lighter) 273 pistons so the balancing bobweight is the same.
live every 24 hour block of time like it's your last day on earth
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Re: Are stock HP273 pistons forged or cast?
[Re: RapidRobert]
#466753
02/06/10 09:42 AM
02/06/10 09:42 AM
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Joined: May 2004
Posts: 952 Stockholm, Sweden
MrSixpack
super stock
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super stock
Joined: May 2004
Posts: 952
Stockholm, Sweden
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My 3 commando engines has cast pistons.
1970 Super Stock Challenger ex. Paul Rossi 1968 Dodge Dart GT 340 1968 Dodge Charger /6 3 speed manual 1966 Chrysler 300 Loaded 1968 Dodge Charger R/T 440
1968 Mini Cooper
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