Aluminum 350 blocks
Team Owner
Joined: Sep 2001
Posts: 62,142
Likes: 1,729
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: Aluminum 350 blocks (GRX)
I'm glad somebody asked, i was thinkin about this yesterday while lookin at my Scoggin-Dickey catalog. They had several AL blocks inside for SBC's. Could you use one instead of a ZZ4 block? advantages?
Racer
Joined: Oct 2000
Posts: 476
Likes: 0
From: Socorro New Mexico
Re: Aluminum 350 blocks (GRX)
No hp performance advantage, save about 100 lbs is all. Rather expensive for 100 lbs of weight savings. Yeah I want one also. These things have been around for almost forever. The sprint car guys use them almost exclusively. If you go that route, may as well get the raised deck, siamesed bore block and go for some cubes [bigtime]. :cool: :cool: :cool: :cheers:
Team Owner
Joined: Sep 2001
Posts: 62,142
Likes: 1,729
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: Aluminum 350 blocks (BBA)
I thought the C5 was an entirely different animal than the 'old school' 350???
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Pro
Joined: Dec 2000
Posts: 588
Likes: 0
From: San Ramon Ca
Re: Aluminum 350 blocks (GRX)
If this is the block you're talking about it is a very good start to building a great engine .....it was the one I was considering before getting involved in the LT5. You have a wide range of reasonable head setups off setting some of the price and certainly the weight savings is worth it and this block has lots of potential.
P/N 10185075
The aluminum V8 bare block weighs 90 lbs. and is cast from prime ingot A-356 aluminum with heat treatment to T6 specifications. Wall thicknesses have been increased for greater stress capabilities. The main bearing diameter is 2.45". Its rigid deck surfaces are .620". It has blind-tapped head bolt holes to improve head gasket sealing. The cylinder sleeves are semi-finished at 3.986" and will finish at 4.160" bore diameter. It has a 4-bolt main bearing cap on all five locations of 8620 steel which will clear standard oil pans. The rear main bearing is the 2-piece, pre-1986 design. These blocks are wet sump designed but can be converted to dry sump oiling by simply plugging the oil pump hole in its rear main bearing cap. Use cam bering kit P/N 12370843.
P/N 10185075
The aluminum V8 bare block weighs 90 lbs. and is cast from prime ingot A-356 aluminum with heat treatment to T6 specifications. Wall thicknesses have been increased for greater stress capabilities. The main bearing diameter is 2.45". Its rigid deck surfaces are .620". It has blind-tapped head bolt holes to improve head gasket sealing. The cylinder sleeves are semi-finished at 3.986" and will finish at 4.160" bore diameter. It has a 4-bolt main bearing cap on all five locations of 8620 steel which will clear standard oil pans. The rear main bearing is the 2-piece, pre-1986 design. These blocks are wet sump designed but can be converted to dry sump oiling by simply plugging the oil pump hole in its rear main bearing cap. Use cam bering kit P/N 12370843.
Le Mans Master
Joined: Jul 2001
Posts: 5,297
Likes: 0
From: Stamford VT
Re: Aluminum 350 blocks (GRX)
4.160" bore diameter? Must be to compensate for the expansion of the AL?
