Alum Block: 10134351
- Thread starter Silly
- Start date
Windedv6
Ty n 10s
Re: Alum Block: 10134351
I believe the crank journals on the 10134351 Block is 2.65". Our cranks have 2.45" journals.The same HD aluminum block with the 2.45'' crank journals is PN: 10134371. You might want to check that.
John
I believe the crank journals on the 10134351 Block is 2.65". Our cranks have 2.45" journals.The same HD aluminum block with the 2.45'' crank journals is PN: 10134371. You might want to check that.
John
Silly
Banned
Re: Alum Block: 10134351
Hmm if I remember that one can only go to 350ci while the 10134351 can go to 400ci
Hmm if I remember that one can only go to 350ci while the 10134351 can go to 400ci
Windedv6
Ty n 10s
Silly
Banned
Re: Alum Block: 10134351
http://www.jrgmparts.com/GM_Perform...r_Heads_G/crate_engines_cylinder_heads_g.html
http://www.jrgmparts.com/GM_Perform...r_Heads_G/crate_engines_cylinder_heads_g.html
Windedv6
Ty n 10s
Re: Alum Block: 10134351
10134371
Aluminum Racing Bare Block (350 ci Main Size)
• Improved, new-design 90 V-6 A-356 aluminum racing block with 3.980" bores (maximum bore of 4.125")
• Will accommodate 4.000" stroke and can be built in displacements ranging from 3.0L to 5.2L
• Deck surface is 0.620" thick, with reinforced front and rear bulkheads
• Head bolt holes are blind-tapped to eliminate coolant leaks
• Four-bolt main caps are machined from 4340 chromemoly steel
• Block has an upgraded V-8-style oiling system
• Uses a two-piece rear main seal
10134351
Aluminum Racing Bare Block (400 ci Main Size)
• Has the same features as block P/N 10134371 (see above), except it has 4.117" bores, a 2.65"-diameter main bearing bore and a provision for dry sump oiling
• Maximum recommended bore is 4.130"
10134371
Aluminum Racing Bare Block (350 ci Main Size)
The 350ci main size means the this block has the standard 350ci SBC size main journals which are 2.45".
10134351
Aluminum Racing Bare Block (400 ci Main Size)
The 400ci main size means the this block has the 400ci SBC size main journals which are 2.65". Some oddfire cranks were cut with this size journal. I never heard of an evenfire 2.65" main journal.
Will accommodate 4.000" stroke and can be built in displacements ranging from 3.0L to 5.2L
A 4.00" stroke and 4.130" bore will get to to 5.2 liter or approximately 318ci.
John
10134371
Aluminum Racing Bare Block (350 ci Main Size)
• Improved, new-design 90 V-6 A-356 aluminum racing block with 3.980" bores (maximum bore of 4.125")
• Will accommodate 4.000" stroke and can be built in displacements ranging from 3.0L to 5.2L
• Deck surface is 0.620" thick, with reinforced front and rear bulkheads
• Head bolt holes are blind-tapped to eliminate coolant leaks
• Four-bolt main caps are machined from 4340 chromemoly steel
• Block has an upgraded V-8-style oiling system
• Uses a two-piece rear main seal
10134351
Aluminum Racing Bare Block (400 ci Main Size)
• Has the same features as block P/N 10134371 (see above), except it has 4.117" bores, a 2.65"-diameter main bearing bore and a provision for dry sump oiling
• Maximum recommended bore is 4.130"
10134371
Aluminum Racing Bare Block (350 ci Main Size)
The 350ci main size means the this block has the standard 350ci SBC size main journals which are 2.45".
10134351
Aluminum Racing Bare Block (400 ci Main Size)
The 400ci main size means the this block has the 400ci SBC size main journals which are 2.65". Some oddfire cranks were cut with this size journal. I never heard of an evenfire 2.65" main journal.
Will accommodate 4.000" stroke and can be built in displacements ranging from 3.0L to 5.2L
A 4.00" stroke and 4.130" bore will get to to 5.2 liter or approximately 318ci.
John
Windedv6
Ty n 10s
Re: Alum Block: 10134351
Why not get a -71 if you are wnting an aluminum? The last I heard GM still had a couple. At least you could use our cranks. My down side opinion on aluminum cranks is the Hp limit. You can easily over come the weight saving of an aluminum block (85 Lbs = less than a 1/10 et) by having more hp in a dependable cast block.
John
Why not get a -71 if you are wnting an aluminum? The last I heard GM still had a couple. At least you could use our cranks. My down side opinion on aluminum cranks is the Hp limit. You can easily over come the weight saving of an aluminum block (85 Lbs = less than a 1/10 et) by having more hp in a dependable cast block.
John
Silly
Banned
Re: Alum Block: 10134351
Well doesn't the -51 rate quite a bit higher than the -71?
Correct me if I am wrong, you would know better than me, but isn't the -71 good to 750hp roughly? While that is a lot, you know it isn't "enough".
Bottom line is I am looking for the alum block that holds more than 750.
Well doesn't the -51 rate quite a bit higher than the -71?
Correct me if I am wrong, you would know better than me, but isn't the -71 good to 750hp roughly? While that is a lot, you know it isn't "enough".
Bottom line is I am looking for the alum block that holds more than 750.
Windedv6
Ty n 10s
Re: Alum Block: 10134351
They are the same block except for the crank journal sizing. They are advertised as coming with different bore sizes, but the max bore is basically the same. These are sleeved cylinders so in theory a smaller bore may be a little stronger. Sleeved motors are usually sleeved with iron ductial material which is stronger than a nornal cast iron casted cylinder. Many SBC guys sleeve brand new motors for added strength and cylinder wall thickness consistency.
Both the -51 and the -71 blocks have the same webbing and bulkhead strength. They are cast from the same molds.
John
They are the same block except for the crank journal sizing. They are advertised as coming with different bore sizes, but the max bore is basically the same. These are sleeved cylinders so in theory a smaller bore may be a little stronger. Sleeved motors are usually sleeved with iron ductial material which is stronger than a nornal cast iron casted cylinder. Many SBC guys sleeve brand new motors for added strength and cylinder wall thickness consistency.
Both the -51 and the -71 blocks have the same webbing and bulkhead strength. They are cast from the same molds.
John
killerrudy
New member
Re: Alum Block: 10134351
Found this one online! Man, I didn't know that these little treasures were so expensive! No wonder everyone is doing lsx swaps instead!
http://02c0c2a.netsolstores.com/index.asp?PageAction=VIEWPROD&ProdID=22323
Found this one online! Man, I didn't know that these little treasures were so expensive! No wonder everyone is doing lsx swaps instead!
http://02c0c2a.netsolstores.com/index.asp?PageAction=VIEWPROD&ProdID=22323