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> Part # Verification for Mahle 2.2S Pistons, can someone help me out on this?
seanery
post Aug 19 2004, 08:18 AM
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Mahle PN 503-39-90

Can someone confirm the p/n listed above or point me to a place where I can do it?

Thanks! (IMG:style_emoticons/default/smile.gif)
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ArtechnikA
post Aug 19 2004, 09:10 AM
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rich herzog
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THE source for Mahle in the US is ANDIAL.
but i bet the guys at EBS could help too if you didn't want to deal with ANDIAL directly.
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seanery
post Aug 19 2004, 09:25 AM
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seanery
post Aug 19 2004, 09:26 AM
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seanery
post Aug 19 2004, 09:26 AM
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seanery
post Aug 19 2004, 09:26 AM
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ArtechnikA
post Aug 19 2004, 09:31 AM
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those look like they could be 2,2S pistone.
my E pistons are still powering the car so i can't show you a verified E piston for comparison.

i think you'll need to know the pin height before you can conclusively determine that they're -not- 2,4S pistons - the 2,4 was a stroker 2,2 - identical 84mm bore ... but the pin heights in the pistons is different to accommodate the longer stroke...
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seanery
post Aug 19 2004, 11:08 AM
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The seller just sent this to me:
QUOTE
I E-mailed mahle a while back and the original use was for a 1969 2.2S
and they could be used on a 2.4 MFI, they don't use these #'s any more
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ArtechnikA
post Aug 19 2004, 11:29 AM
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QUOTE(seanery @ Aug 19 2004, 09:08 AM)
QUOTE
I E-mailed mahle a while back and the original use was for a 1969 2.2S
and they could be used on a 2.4 MFI, they don't use these #'s any more

well - that's not helpful - there were no 2,2's in '69 ...
and all 2,4 E's and S's were MFI engines.
and all 2,2's and 2,4's were 84mm bore...

i haven't seen enough of both to be able to eyeball the difference between an E piston and an S -- especially if we don't know whether it's a 2,2 or a 2,4 piston (2,4 engines had significantly reduced compression ratios compared to the 2,2's ...)

you need the pin height.

i don't know if pin height is referenced to the piston deck, crown or the bottom of the skirt (crown or deck, i'd think...) and i don't know what they measure (the difference) between a 66mm stoke 2,2 and a 70,4mm stroke 2,4 -- but someone here must. or call EBS ...
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seanery
post Aug 19 2004, 12:03 PM
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I plan on calling EBS, sending the 2.0 -4 heads there.

The seller has sent an email to Mahle for confirmation, too.
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J P Stein
post Aug 19 2004, 12:37 PM
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I once had a set of 2.4L S P/Cs.......plan D or sumthin'.
Those aren't them. The valve pockets & domes were much smaller.....still, check em' out.

The only place I know of to find the dimensions would be a factory manual.
Andial would have the old P/Ns, I would think. They do have a website listing P/Cs.
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seanery
post Aug 19 2004, 01:10 PM
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Andial has a set in stock $2591 (IMG:style_emoticons/default/blink.gif) but it doesn't show the Mahle P/N.
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seanery
post Aug 19 2004, 01:14 PM
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i wonder how much a good 2.4 crank is?

any other differences between a 2.4 and 2.2?
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Cap'n Krusty
post Aug 19 2004, 02:01 PM
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503-45-90 is a 2.2T, FWIW The Cap'n
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J P Stein
post Aug 19 2004, 02:04 PM
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QUOTE(seanery @ Aug 19 2004, 11:14 AM)
i wonder how much a good 2.4 crank is?

any other differences between a 2.4 and 2.2?

I sold one.....crank & rods for 400 bucks.....
I have another on the shelf (& 5 and a half rods (IMG:style_emoticons/default/biggrin.gif)) , but wanna keep it. It works for a 2.7.

You'll need rods, also. AIR, they are 1 mm shorter than 2.2 rods. If those are 2.2 pistons, they are "iffy" for a 2.4L.....case clearance & compression (hi) probs.

2.2S is good for 180 hp....minus maybe 10hp with carbs.
S cams & Webers are iffy also....for a street motor.

Tom Wilkinson had Rothsport build him a 2.5L long storke motor with carbs. AIR it made 196 hp at the crank. He'd be a good man to talk at. He's here somewhere.
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Cap'n Krusty
post Aug 19 2004, 02:09 PM
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Good cranks go for 500-750. T cranks may be lower, E/S counterweighted cranks may be higher. The rods and rod bolts are different, and the rod bearings. I believe 2.4 cases are squirted, pretty sure 2.2s aren't. You can use a 2.7 crank in a 2.4, and a 2 litre crank in a 2.2. I have some of each in my pile of engine stuff, as well as some cases of various types. HTH, The Cap'n
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ArtechnikA
post Aug 19 2004, 02:09 PM
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QUOTE(seanery @ Aug 19 2004, 11:10 AM)
Andial has a set in stock $2591 (IMG:style_emoticons/default/blink.gif)

and people think we're kidding when we tell them it's as expensive to rebuild a 2,0 as a 3,0 ...
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seanery
post Aug 19 2004, 02:10 PM
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I was just thinking if I bought 'em and they were 2.4 P/Cs.

The plan is E cams with weber 40s. EBS said they'd port the heads to S spec.
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seanery
post Aug 19 2004, 02:11 PM
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I've been offered the set pictured for $1200.
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ArtechnikA
post Aug 19 2004, 02:16 PM
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rich herzog
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QUOTE(Cap'n Krusty @ Aug 19 2004, 12:09 PM)
I believe 2.4 cases are squirted, pretty sure 2.2s aren't.

all the references say squirters started with '70 production, with the 2,2's...
i don't have my engine open yet to verify.

i think i read something about a main bearing width difference between the 66mm and 70,4mm stroke cranks, but i can't recall where i read it, now ...
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