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Old 02-26-2007, 11:41 AM
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Machine Shop Costs??

i have a 350 block...i either want to put a 383 rotating assembly in it or make my own bottom end 350 combination....how much around would it cost to grind the block for the 383??? how much would it cost to get my 350 balanced???

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Old 02-26-2007, 12:45 PM
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Every block is different and every rotating assembly is different. You never know where you'll have to clearance parts until you mock up the assembly. If you use the 400 rods (5.565" c-c), you will not have to do any clearancing at all.

We've been over and over the long rod, short rod controversy and nobody has convinced me that it will make a tinker's damn on a street motor. The only benefit to a 5.700" rod when building a 383 that I can see is that you have a wider choice of pistons.

As I said, with the 400 rods, you just bolt it together and go. With the 350 rods, there will generally be interference with the head of some of the rod bolts heads at the camshaft, with the big end of the rod at the pan rail and possibly on the underside of the piston crown at the balance pad of the rod.

Most all the cam grinders make a cam that is ground on a smaller base circle to eliminate the rod/cam interference. This drops the lobe down further away from the rocker arm, so you have to use a longer pushrod.

Most shops will charge $150 to $200 to balance an assembly.
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Old 02-26-2007, 04:26 PM
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When we have a block come in the shop we sonic test it, clean and mag, line hone it with new ARP bolt kit, square and deck too zero, stroker clearance, bore and plate hone for 595.00

Go with a 6 inch rod and internally balance it and we charge 175.00 and an external job would be 225.00
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Old 02-26-2007, 04:53 PM
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Quote:
Originally Posted by CNC BLOCKS N/E
When we have a block come in the shop we sonic test it, clean and mag, line hone it with new ARP bolt kit, square and deck too zero, stroker clearance, bore and plate hone for 595.00

Go with a 6 inch rod and internally balance it and we charge 175.00 and an external job would be 225.00
Those are very reasonable prices. I just built a 350 and had all of that done and I spent more than that.
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Old 02-26-2007, 05:11 PM
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I think I am going to send my next block to CNC. Shipping doesnt bother me. Ill pay a couple hundred extra for work like that.
Local shop:
8 expansion plugs 4.80
Degrease(hot tank) 48.00
Cam bearings 25.20
Cam bearing install 45.00
8 Cyl Rebore 40 over 110.00
8 ?Expansion plug R&R? 10.00
Crank regrind 75.00
8 Rod/Piston R&R 46.00
8 Dial something (Only thing I can read in that sentence) 40.00

All basics nothing special for 450. They pounded in one of my expansion plugs and left it in the coolant jacket. Good thing I found it. Besides that it was all pretty good for around 450.
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Old 02-26-2007, 08:00 PM
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Dang, I'm looking at over $750 for my machine work. That's not including any balancing. That's clean, sonic check, mag, install cam bearings, bore/hone with torque plates, square deck the block, align hone, and a few other things...
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Old 02-26-2007, 09:42 PM
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Quote:
Originally Posted by DeathRattle
I think I am going to send my next block to CNC. Shipping doesnt bother me. Ill pay a couple hundred extra for work like that.
Local shop:
8 expansion plugs 4.80
Degrease(hot tank) 48.00
Cam bearings 25.20
Cam bearing install 45.00
8 Cyl Rebore 40 over 110.00
8 ?Expansion plug R&R? 10.00
Crank regrind 75.00
8 Rod/Piston R&R 46.00
8 Dial something (Only thing I can read in that sentence) 40.00

All basics nothing special for 450. They pounded in one of my expansion plugs and left it in the coolant jacket. Good thing I found it. Besides that it was all pretty good for around 450.
If we put a call tag out for a block its cheaper as we are on a deep deal on shipping and if we do all the work we ship it back FREE and if we have a block in the shop that is good we do all the work on the block and ship for free in the U.S. and there is no core charge either.
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Old 02-26-2007, 10:16 PM
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Quote:
Originally Posted by CNC BLOCKS N/E
If we put a call tag out for a block its cheaper as we are on a deep deal on shipping and if we do all the work we ship it back FREE and if we have a block in the shop that is good we do all the work on the block and ship for free in the U.S. and there is no core charge either.
You are getting a little close to the line on advertising for your business here. Ballpark figures are ok but anything more than that should be done through PMs. At least that's what I try to do.

tom
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Old 02-27-2007, 09:17 AM
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The last 350 block i got done was $550(can) tax inc. 7%+8%
Hot tank, bore, hone, align hone, O deck block, install cam bearings,supply frost plugs and gallery plugs. Threw in a new oil pump and complete gasket set. Did a very nice job.

Unless you already own a good set of aluminum heads for this motor, spend the $$$ yu would on buying the parts and machining for a stroker, on some good aluminum heads for a 350. You'll go much faster for the same $$$.
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Old 02-27-2007, 03:03 PM
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Quote:
Originally Posted by F-BIRD'88
The last 350 block i got done was $550(can) tax inc. 7%+8%
Hot tank, bore, hone, align hone, O deck block, install cam bearings,supply frost plugs and gallery plugs. Threw in a new oil pump and complete gasket set. Did a very nice job.

Unless you already own a good set of aluminum heads for this motor, spend the $$$ yu would on buying the parts and machining for a stroker, on some good aluminum heads for a 350. You'll go much faster for the same $$$.
You mean you could not do your own block work with a die grinder LOL
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Old 02-27-2007, 03:08 PM
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Quote:
Originally Posted by CNC BLOCKS N/E
You mean you could not do your own block work with a die grinder LOL
te ethhee ya if I found a boring bar for sale, I'd probabily grab it and start boreing blocks down in the basement.....LOL
But the owner of one of the shops I get my blocks done at lives a few doors down. Would probabily think I'm cutting his grass. He does a good job and charges a more than fair price. Its better to just take it to him.
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