350 With 4.0 Stroke

Old 01-28-2008, 07:50 PM
  #1  
edbrgolf
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Default 350 With 4.0 Stroke

I am looking for some advise I have a 350 2 bolt main block looking to put a 4.0 stroke crank. I need to know whats the diffrence with 5.7 rods or 6.0 rods. Could use some help on the compression will be using patriot heads 2.05int. 1.96 exhaust, victor jr. 750 or 850 carb. also what would be the biggest cam that I should use. I figure the motor should be around 408 cubic inches. Does anyone run this combo, its going in a 97 sonoma with a 9inch w/4:56 gears it will be street and strip. I had the 383 in the truck but it had a knock so i figured that I would make it better. Please let me know what you think looking for some help thanks.
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Old 01-28-2008, 08:00 PM
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hink
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Default Re: 350 With 4.0 Stroke

Originally Posted by edbrgolf
I am looking for some advise I have a 350 2 bolt main block looking to put a 4.0 stroke crank. I need to know whats the diffrence with 5.7 rods or 6.0 rods. Could use some help on the compression will be using patriot heads 2.05int. 1.96 exhaust, victor jr. 750 or 850 carb. also what would be the biggest cam that I should use. I figure the motor should be around 408 cubic inches. Does anyone run this combo, its going in a 97 sonoma with a 9inch w/4:56 gears it will be street and strip. I had the 383 in the truck but it had a knock so i figured that I would make it better. Please let me know what you think looking for some help thanks.
Putting a 4 inch stroke in a 350 block is probably going to get you into the water jackets and the differance between the 5.7 and a 6.0 rod is .300 differance.

And using a 2 bolt block with that much stroke will certainly make the caps move around or break.
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Old 01-28-2008, 08:07 PM
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edbrgolf
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will a 3.750 stroke be too much for the 2 bolt main block. I am wondering if that is what my knocking noise is. thanks for the info.
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Old 01-29-2008, 12:46 AM
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zipper06
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I'm with carl on this one, it's hard to go more than 3 7/8" with a 350 blk without getting into the water jacket. I have a friend running this combo with alum rods, but 2" dia pin. actually it runs pretty good, 9.20's @143mph with a 55 [email protected] 2600lbs.

Zip.
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Old 01-30-2008, 06:27 AM
  #5  
hink
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If this helps

We have one Dart Little-M Nodular Iron caps 350 mains line honed, decked to your demension, Blue print bored to your spec, plate honed, lifter bores clearanced, water holes in the decks matched to the head gasket and the freeze plug holes chamfered for 2295.00 and shipped free in the U.S.

We have 4 Little-M blocks with steel caps in stock for 2595.00
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