What SBC+BBC aluminum blocks are avalible?
12-30-2002, 12:39 PM
#2
Melting Slicks
Re: What SBC+BBC aluminum blocks are avalible? (garagedweller2)
garagedweller2,
The GM Performance Parts Catalog lists three small block and one big block aluminum blocks. Part Numbers 24502495, 10185075, and 10134400 for the small blocks, and PN 12370850 for the big block.
The small blocks have max bore of around 4.125", with a max stroke of 4.125". The big block has a max bore of 4.300", and a max stroke of 4.375".
The GMPP catalog says the aluminum big block is good for 650 HP. The catalog also shows the Small Block engines with intended Max HP of 850 (at 8000 rpm). :eek:
The weight of the aluminum small blocks ranges from 101 - 89 lbs, with the aluminum big block at 110 lbs. (This big block engine is an improved version of the ZL1 introduced in the 1969 Corvette) The aluminum engines weigh about half what the cast iron engines weigh.
The catalog also indicates the small blocks are intended for professional competition. This is GM's way of telling you to bring lots and lots of $$$$$$$$.
The GM Performance Parts Catalog lists three small block and one big block aluminum blocks. Part Numbers 24502495, 10185075, and 10134400 for the small blocks, and PN 12370850 for the big block.
The small blocks have max bore of around 4.125", with a max stroke of 4.125". The big block has a max bore of 4.300", and a max stroke of 4.375".
The GMPP catalog says the aluminum big block is good for 650 HP. The catalog also shows the Small Block engines with intended Max HP of 850 (at 8000 rpm). :eek:
The weight of the aluminum small blocks ranges from 101 - 89 lbs, with the aluminum big block at 110 lbs. (This big block engine is an improved version of the ZL1 introduced in the 1969 Corvette) The aluminum engines weigh about half what the cast iron engines weigh.
The catalog also indicates the small blocks are intended for professional competition. This is GM's way of telling you to bring lots and lots of $$$$$$$$.
12-30-2002, 12:47 PM
#3
Re: What SBC+BBC aluminum blocks are avalible? (mapman)
There are several alu blocks available. GMPP has the small bore blocks (little over 4"bore max) and a large bore (siamesed) block that can be bored to 4.125" Then ther are donovan, dart and some other manufacturerrs for alu SBC's.
Marck
Marck
12-30-2002, 07:52 PM
#5
Race Director
Re: What SBC+BBC aluminum blocks are avalible? (garagedweller2)
Not that I have the cash to do this, but would it be possible to build daily drivers around an aluminum block?
Just for those who are insane and rich enough for such a proposition...
-Steve
Just for those who are insane and rich enough for such a proposition...
-Steve
12-30-2002, 09:21 PM
#6
Melting Slicks
Re: What SBC+BBC aluminum blocks are avalible? (Pacin'California)
Pacin'California,
The cost of a bare aluminum block from GM varies from around $4200-4800 for the small blocks to $5200 for the big block. Now add in money for all the other components, and the labor to put it together.
A less expensive alternative might be to start with an LS1 (etc) from a wreck. I have seen articles on these type of swaps, but the effort didn't seem trivial.
For a daily driver there are less expensive ways to decrease weight - you might search the archives on this topic, weight seems to be a discussion topic every few months.
Reducing any weight helps (aluminum block/heads/radiator/etc vs cast iron or copper) as the engine now has less mass to accelerate - Same engine with less mass to move equals improved acceleration.
Reducing unsprung mass (weight of tires, wheels, brake rotors, hubs, etc) helps even more for acceleration/deceleration. Not only is there less mass in general to accelerate, the light weight spinning components have less inertia for the engine to overcome.
Being cheap, I'm thinking of going on a diet myself, maybe knock a full second off my E.T. :lol: If you are not already married, you might look for a lighter significant other. :lol:
The cost of a bare aluminum block from GM varies from around $4200-4800 for the small blocks to $5200 for the big block. Now add in money for all the other components, and the labor to put it together.
A less expensive alternative might be to start with an LS1 (etc) from a wreck. I have seen articles on these type of swaps, but the effort didn't seem trivial.
For a daily driver there are less expensive ways to decrease weight - you might search the archives on this topic, weight seems to be a discussion topic every few months.
Reducing any weight helps (aluminum block/heads/radiator/etc vs cast iron or copper) as the engine now has less mass to accelerate - Same engine with less mass to move equals improved acceleration.
Reducing unsprung mass (weight of tires, wheels, brake rotors, hubs, etc) helps even more for acceleration/deceleration. Not only is there less mass in general to accelerate, the light weight spinning components have less inertia for the engine to overcome.
Being cheap, I'm thinking of going on a diet myself, maybe knock a full second off my E.T. :lol: If you are not already married, you might look for a lighter significant other. :lol:
12-30-2002, 09:25 PM
#7
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Re: What SBC+BBC aluminum blocks are avalible? (Pacin'California)
Mine is a daily driver. It sees about 12000 miles per year and has been very reliable. I saved and bought parts a little at a time untill I had what I needed to build the engine. I purchased the block from Pace GM Performance Parts Warehouse for $5K (sn 0023). My signiture lists the rest of the esentials.
12-31-2002, 01:24 PM
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Re: What SBC+BBC aluminum blocks are avalible? (ZL1powr)
Mine is a daily driver. It sees about 12000 miles per year and has been very reliable. I saved and bought parts a little at a time untill I had what I needed to build the engine. I purchased the block from Pace GM Performance Parts Warehouse for $5K (sn 0023). My signiture lists the rest of the esentials.
12-31-2002, 01:37 PM
#9
Le Mans Master
Re: What SBC+BBC aluminum blocks are avalible? (garagedweller2)
Dart, Donovan, and Rodeck also make al small blocks. All aftermarket blocks are available in the 4.125" bore size.
To calculate displacement use Pi/4 x bore (squared) x stroke x no. or cylinders
To calculate displacement use Pi/4 x bore (squared) x stroke x no. or cylinders
12-31-2002, 11:31 PM
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Re: What SBC+BBC aluminum blocks are avalible? (garagedweller2)
:eek: How many cubic inches is that?(I forgot the formula) I always wnted to build a 427 ZL1 clone :D
