#'s on my block
Burning Brakes
Joined: Mar 2006
Posts: 915
Likes: 2
From: Lima, OH -- 69 L71 427/435hp
Here's a good starter point for you.
http://www.yearone.com/updatedsingle...gineinfo1.html
and this...
http://www.nastyz28.com/bbcmenu.html
http://www.yearone.com/updatedsingle...gineinfo1.html
and this...
http://www.nastyz28.com/bbcmenu.html
Thread Starter
Racer
Joined: Jul 2006
Posts: 355
Likes: 0
From: milpitas ca
were heres what it says on my bell housing ( ithink) 3970010 can some one tell me what it means? cause if i got a l82 block im gonna keep it if now im think of just swapin it out.....thanks!!
Drifting
Joined: Jul 2002
Posts: 1,944
Likes: 20
From: The only Corvettes in Highett Victoria
small block
Bat,
Just looked up my Black Book and your block number tells me that it's a small block. Same part # for 195 and 250 h.p. But it's also the same # for 350 block from 1969 to 1980, so may not be original. Only the #s on the front pad can tell us that. Then we'll know if it's a four bolt or not.
Regards from Down Under
aussiejohn
Just looked up my Black Book and your block number tells me that it's a small block. Same part # for 195 and 250 h.p. But it's also the same # for 350 block from 1969 to 1980, so may not be original. Only the #s on the front pad can tell us that. Then we'll know if it's a four bolt or not.
Regards from Down Under
aussiejohn
Thread Starter
Racer
Joined: Jul 2006
Posts: 355
Likes: 0
From: milpitas ca
Bat,
Just looked up my Black Book and your block number tells me that it's a small block. Same part # for 195 and 250 h.p. But it's also the same # for 350 block from 1969 to 1980, so may not be original. Only the #s on the front pad can tell us that. Then we'll know if it's a four bolt or not.
Regards from Down Under
aussiejohn
Just looked up my Black Book and your block number tells me that it's a small block. Same part # for 195 and 250 h.p. But it's also the same # for 350 block from 1969 to 1980, so may not be original. Only the #s on the front pad can tell us that. Then we'll know if it's a four bolt or not.
Regards from Down Under
aussiejohn
Drifting
Joined: Jul 2002
Posts: 1,944
Likes: 20
From: The only Corvettes in Highett Victoria
"...lost numbers....???"
bat,
The fifth digit, "T" indicates the car left the factory with the 250 horse engine, i.e. the L82, but you can't "lose" the numbers on the pad. They are stamped in with a heavy die and the only way to remove them is to surface grind or machine the block. This tells me that your engine has been pulled at some stage for reconditioning and either the same one or another with the same casting number has been put back in.
Without pulling the oil pan and looking for four bolt mains and a forged crank, it's pretty hard to tell you what you've got in there. An L82 should have:-
four bolt block,
forged crank.
aluminum inlet manifold,
aluminum rocker covers,
bigger valves, etc.
Good luck
Regards from Down Under
aussiejohn
The fifth digit, "T" indicates the car left the factory with the 250 horse engine, i.e. the L82, but you can't "lose" the numbers on the pad. They are stamped in with a heavy die and the only way to remove them is to surface grind or machine the block. This tells me that your engine has been pulled at some stage for reconditioning and either the same one or another with the same casting number has been put back in.
Without pulling the oil pan and looking for four bolt mains and a forged crank, it's pretty hard to tell you what you've got in there. An L82 should have:-
four bolt block,
forged crank.
aluminum inlet manifold,
aluminum rocker covers,
bigger valves, etc.
Good luck
Regards from Down Under
aussiejohn
Drifting
Joined: Jul 2002
Posts: 1,944
Likes: 20
From: The only Corvettes in Highett Victoria
Vin
bat,
Also, there appears to be one number short in your VIN, should be SIX digits after ...37T4S not five. Tell me this and I can tell you in which month (and year) the car was made.
Cheers
aussiejohn
Also, there appears to be one number short in your VIN, should be SIX digits after ...37T4S not five. Tell me this and I can tell you in which month (and year) the car was made.
Cheers
aussiejohn
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Drifting
Joined: Jul 2004
Posts: 1,695
Likes: 65
From: Kissimmee fl
Finalist 2021 C3 of the Year - Modified
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St. Jude Donor '07
On the opposite side from your 0010 no. there will be a date casting no. on the block. Find this and post and someone can tell what year it was made.
