Yep, 441 cu. in. or 7.23 liters.
Stroked LS7
Team Owner
Joined: Jul 2002
Posts: 36,985
Likes: 68
From: This city NEVER sleeps! Frank's back yard!
Originally Posted by 73VetteMan
So if I buy a new LS7 bare block when it becomes available and use a 4.125 stroker crank, how many cubic inches will I get?
I would guess around 440 cids. Only problem is, you'd be removing a very expensive forged crank, and installing another. This would likely set you back around 5K!! Too pricey for the power gain associated. Go with headers instead!
Thread Starter
Instructor
Joined: Jan 2004
Posts: 168
Likes: 0
From: Detroit area mi
Originally Posted by DDSLT5
Only problem is, you'd be removing a very expensive forged crank, and installing another. This would likely set you back around 5K!! Too pricey for the power gain associated.
The available 4.125" stroker cranks are not too bad in price and competition from other manufacturers should bring the price down. I should think that less than $5,000 should get the block, crank, rods, pistons etc. to make a complete shortblock.
Burning Brakes
Joined: May 2000
Posts: 881
Likes: 0
From: Clearwater, FL, USA
Katech and Augistino built 454s, one using a 4.25 crank that required removal of some block material and the other was a done with a 4.155-4.160 bore and a custom crank.
Here's something I put together last year. Enjoy.
http://www.c5frc.com/calculators/Com...Calculator.htm
Here's something I put together last year. Enjoy.
http://www.c5frc.com/calculators/Com...Calculator.htm
Last edited by FRC Tom; Dec 29, 2004 at 09:35 PM.
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Safety Car
Joined: Dec 2004
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From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
Originally Posted by 73VetteMan
I plan on buying just the BARE block. I think the current LS2 block is around $1400. Hopefully the 4.125" bore LS7 block isn't too much more.
The available 4.125" stroker cranks are not too bad in price and competition from other manufacturers should bring the price down. I should think that less than $5,000 should get the block, crank, rods, pistons etc. to make a complete shortblock.
The available 4.125" stroker cranks are not too bad in price and competition from other manufacturers should bring the price down. I should think that less than $5,000 should get the block, crank, rods, pistons etc. to make a complete shortblock.
do you plan to use the standard bore or are you gonna open it up a bit with an overbore ? bore it out, drop in a larger crank, smaller connecting rods, longer push rods, increase the rocker ration.
-zig
Thread Starter
Instructor
Joined: Jan 2004
Posts: 168
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From: Detroit area mi
441 Cubic Inches sounds good to me
Originally Posted by Zig
do you plan to use the standard bore or are you gonna open it up a bit with an overbore ? bore it out, drop in a larger crank, smaller connecting rods, longer push rods, increase the rocker ratio.
-zig
-zig
I think I can built a real groundpounder engine for a faily resonable price by eliminating the need for exotic machine work.
