Engine Build with Alum Head

R

rwbrooks50

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I have an aluminum head & intake on the way. Here are the parts I have to build the engine:
Cam - Clay Smith H-274-0-B and CI timing chain & gears
Carbs, Holley 350-2, Holley 600-4, Edelbrock 600-4.
Stock rockers, maybe adjustable
Block 250 stock, bored .040 over or I can rebuild a 250 with .030 TRW L3000F forged dish pistions.
Duel out headers.

This will be a street machine. Mostly show and a litte tire burning.

Thanks,
Rick
 
rwbrooks50":r46768xp said:
I have an aluminum head & intake on the way. Here are the parts I have to build the engine:
Cam - Clay Smith H-274-0-B and CI timing chain & gears
Carbs, Holley 350-2, Holley 600-4, Edelbrock 600-4.
Stock rockers, maybe adjustable
Block 250 stock, bored .040 over or I can rebuild a 250 with .030 TRW L3000F forged dish pistions.
Duel out headers.

This will be a street machine. Mostly show and a litte tire burning.

Thanks,
Rick
Click to expand...


by sean Buick 76 on 02-07-2008 said:
http://www.v8buick.com/archive/index.php/t-142676.html[/url] ":r46768xp]...... in your old trw catalouge?
..........3.0 (181) Eng--1982-85 v6 cyl --3.800 Bore (2 Brl carb.) C/R 8.45-1

L3000F Seiris is decompresed
H in sufix indicates Hypereutectic alloy
Click to expand...
.

That is a 3.83 overbore on a stock 3.8" bore. That's 150 thou over, way too much for a thin wall casting that has less than 120 thou of metal at the thrust faces. 231, 350 Buick pistons won't fit, they are too big. A set of earlier 3.75" bore items from a 225 Buick V6 or 300 Buick will work better, but unless you got em, it'll be very hard to track down a set.
 
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