SB Chevy head question

BillK · 10-05-2009, 06:45 PM

3731539....57......283..........283 HP FI

3703523....55......265

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

FED 387 · 10-05-2009, 07:45 PM

3703523 head
1955--- 265 -----172 int 150 ex----195 hp

3731539 head
1957----283------172 int 150 ex----283 HP FI Corvette

10-05-2009, 06:45 PM	#1
BillK Member Join Date: Nov 2005 Location: Waldorf Md Posts: 230 Likes: 12 Liked 30 Times in 17 Posts	Re: SB Chevy head question 3731539....57......283..........283 HP FI 3703523....55......265 http://www.mortec.com/castnum.htm __________________ Bill Koustenis

10-05-2009, 07:45 PM	#2
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,417 Likes: 522 Liked 331 Times in 179 Posts	Re: SB Chevy head question 3703523 head 1955--- 265 -----172 int 150 ex----195 hp 3731539 head 1957----283------172 int 150 ex----283 HP FI Corvette

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