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Discussion Starter #1
We are wanting to know if either of these blocks are stronger than the old C9VE or D1 block? We know they are externally balanced, but have the ability to machine the webbing to accept an internally balanced crank. We will be hard blocking, using a steel crank and aluminum rods. Bottom line are these a better block to use over the C9 or D1 block. This will be running an 8-71 alcohol blower.

Thanks,
 

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We are wanting to know if either of these blocks are stronger than the old C9VE or D1 block? We know they are externally balanced, but have the ability to machine the webbing to accept an internally balanced crank. We will be hard blocking, using a steel crank and aluminum rods. Bottom line are these a better block to use over the C9 or D1 block. This will be running an 8-71 alcohol blower.

Thanks,
I have never seen an E7TE block and don't believe they exist. There are E7TE heads and they are on D9TE blocks.

The D9TE blocks can be clearanced for the OEM internal balance crankshafts in 30 minutes (typical) with a carbide cutter and die grinder.

All the 385 Series engine blocks (C8VE, C9VE, D0VE, D1VE, D9TE) seem to be cast with a very good quality iron alloy and I don't know that the "early" blocks are superior to the "late" (D9TE) block as far as material goes, however it has been our experience that the late blocks do have better overall wall thickness uniformity, generally speaking. Although not a common occurence, overdriving/overloading the 2-bolt passenger car blocks with a blower belt on a non-supported forged cranksaft snout can load the #2 2-bolt main cap and crack it under extreme circumstances (the load against the snout leverages or "see-saws" on the #1 main saddle and loads #2 cap). Under lesser loads and with lower rpms (sub-7000 rpm) they can be utlized in high (1000+) horsepower applications for short periods of time such as the short bursts seen in drag racing. Alcohol fuel and aluminum rods do lessen the shock loading in these cases.
 

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Discussion Starter #3
Understand and spalyed 4 bolt main caps will also be employed on this setup. Bottom line other than maybe some more uniform wall thickness a block is a block!

Thanks,
Pat
 

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Understand and spalyed 4 bolt main caps will also be employed on this setup. Bottom line other than maybe some more uniform wall thickness a block is a block!

Thanks,
Pat
A properly executed 4-bolt main cap conversion can increase block strength measurably. Filling the water jackets solid can do the same for the cylinder walls and also minimizes the significance of wall thickness uniformity (or lack thereof).
 
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