High-Nickel SBC Chevy blocks?

Tim H · 03-12-2013, 08:15 PM

Not sure about high-nickel, but the front area behind timing cover used to to have numbers relating to nickel content in the old prodution blocks as I recall...

Michael Kilduff · 03-12-2013, 11:09 PM

Actually I'd be very suprised if GM used 'high nickel' in production blocks. I remember tearing down quite a few sbc's of 60's and 70's vintage out of crashed up cars in yards that had the 010 and 020 numbers in the castings...if that indeed correlated to high nickel content surely the cost to produce would be higher than using iron instead. Some of these blocks/engines were 307's and low performance 350 impalas and chevelles-4 door 2 barrel cars. No need to put expensive castings in those kinds of cars I would think.

Tom Meyer · 03-12-2013, 11:32 PM

If I remeber right chevy had a high nickle 4in block in the late 70s early 80s the number was in how to build a small block chevy book in that era I think I still have that book somewhere. My brother ordered one back in the day and never did anything with it. It was over 500$ back then. The 721 chevy II block from 1964 was also supost to be high nickle the 283 block that could be borded to 4 in. Tom

03-12-2013, 08:15 PM	#1
Tim H VIP Member Join Date: Jan 2007 Posts: 1,044 Likes: 1,094 Liked 485 Times in 160 Posts	Re: High-Nickel SBC Chevy blocks? Not sure about high-nickel, but the front area behind timing cover used to to have numbers relating to nickel content in the old prodution blocks as I recall...

03-12-2013, 11:09 PM	#2
Michael Kilduff Member Join Date: Sep 2008 Location: Carolina Beach, NC Posts: 281 Likes: 0 Liked 0 Times in 0 Posts	Re: High-Nickel SBC Chevy blocks? Actually I'd be very suprised if GM used 'high nickel' in production blocks. I remember tearing down quite a few sbc's of 60's and 70's vintage out of crashed up cars in yards that had the 010 and 020 numbers in the castings...if that indeed correlated to high nickel content surely the cost to produce would be higher than using iron instead. Some of these blocks/engines were 307's and low performance 350 impalas and chevelles-4 door 2 barrel cars. No need to put expensive castings in those kinds of cars I would think. __________________ IHRA STK 932 O/SA Last edited by Michael Kilduff; 03-12-2013 at 11:12 PM. Reason: sp

03-12-2013, 11:32 PM	#3
Tom Meyer Senior Member Join Date: Aug 2003 Location: Pierce NE Posts: 937 Likes: 78 Liked 354 Times in 120 Posts	Re: High-Nickel SBC Chevy blocks? If I remeber right chevy had a high nickle 4in block in the late 70s early 80s the number was in how to build a small block chevy book in that era I think I still have that book somewhere. My brother ordered one back in the day and never did anything with it. It was over 500$ back then. The 721 chevy II block from 1964 was also supost to be high nickle the 283 block that could be borded to 4 in. Tom __________________ Tom Meyer 5240 SS Stock ???

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