crankshaft casting number help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mastercraftkpk · 06-17-2004, 10:23 PM

Does anyone have a good source for looking up SBC crank casting numbers?

I have a 350 crank w/#3832442.

TIA

*CanadianFolk* · 06-17-2004, 10:33 PM

http://www.mortec.com/notepg1.htm

Sweet72 · 06-17-2004, 10:45 PM

Can't seem to find your crank casting no on either the mortec or nastyz28 sites. Two other casting numbers with 383XXXX are 265's and 283 50's and 60's vintage.

*CanadianFolk* · 06-18-2004, 02:57 AM

Crank-3832442.......stroke 4.000x3.484
Conecting rod forge no/s 3923282 or 3946841
350-5.7 high preformance..thatll bring smile to ya..
67-95

....not that lm a know it all but l can copy and paste realy good ..cheers. :O)

*CanadianFolk* · 06-18-2004, 02:59 AM

do google seach gm 3832442

jimfulco · 06-18-2004, 04:47 AM

Casting numbers are sometimes not clear. The -442 crank is 3932442.

mastercraftkpk · 06-18-2004, 04:35 PM

Thank you ?Gentlemen?. It seems to be the orig/stock crank for my engine('71 LT1).

The cylinders are still stock size w/ very little taper and not out of round, but I found a deep score on the last cylinder I honed this afternoon. Looks like I will need to bore @30. To bad

Thanks again.

06-17-2004, 10:23 PM	#1
mastercraftkpk Registered User Join Date: Nov 2003 Location: houston,tx Posts: 334	crankshaft casting number help Does anyone have a good source for looking up SBC crank casting numbers? I have a 350 crank w/#3832442. TIA

06-17-2004, 10:33 PM	#2
CanadianFolk Account Suspended Join Date: May 2004 Location: Calgary Posts: 174	http://www.mortec.com/notepg1.htm

06-17-2004, 10:45 PM	#3
Sweet72 Registered User Join Date: Nov 2003 Location: Alexandria, VA Posts: 1,534	Can't seem to find your crank casting no on either the mortec or nastyz28 sites. Two other casting numbers with 383XXXX are 265's and 283 50's and 60's vintage. __________________ '72 GMC SWB C1500 Custom, frame-off in progress. 383 SBC, 9:1CR, Comp Cams XE262H, Scat internal balanced crank, Eagle SIR 6" rods, Keith Black dish pistons, Dart Iron Eagle 72/180 heads, Weiand Stealth intake, Stewart stage I water pump, Holley 4bbl vac sec, TH350 with B&M Shift Improver Kit. 12 bolt positraction.

06-18-2004, 02:57 AM	#4
CanadianFolk Account Suspended Join Date: May 2004 Location: Calgary Posts: 174	Crank-3832442.......stroke 4.000x3.484 Conecting rod forge no/s 3923282 or 3946841 350-5.7 high preformance..thatll bring smile to ya.. 67-95 ....not that lm a know it all but l can copy and paste realy good ..cheers. :O)

06-18-2004, 02:59 AM	#5
CanadianFolk Account Suspended Join Date: May 2004 Location: Calgary Posts: 174	do google seach gm 3832442

06-18-2004, 04:47 AM	#6
jimfulco Registered User Join Date: May 2003 Location: Shreveport LA Posts: 3,170	Casting numbers are sometimes not clear. The -442 crank is 3932442.

06-18-2004, 04:35 PM	#7
mastercraftkpk Registered User Join Date: Nov 2003 Location: houston,tx Posts: 334	Thank you ?Gentlemen?. It seems to be the orig/stock crank for my engine('71 LT1). The cylinders are still stock size w/ very little taper and not out of round, but I found a deep score on the last cylinder I honed this afternoon. Looks like I will need to bore @30. To bad Thanks again.



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