LT1-LT4 Modifications 1993-97 Gen II Small Block V8

4 bolt billit caps

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Old Feb 4, 2007 | 06:04 PM
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Default 4 bolt billit caps

Who has the best billit 4 bolt main caps.

General cost for machine work?
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Old Feb 4, 2007 | 07:01 PM
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I bought mine off ebay and there Eagle. It cost me $300.00 to install.
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Old Feb 4, 2007 | 08:56 PM
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I have used several different brands and the Eagle caps required very, very little fitment. You should be able to find them on ebay for about $90. Machine shops vary in price for the line bore & hone.
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Old Feb 4, 2007 | 09:00 PM
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not to hijack the thread but i got some eagle billet caps for 2,3 and 4 mains. i need the 1 and 5 caps also so i was going to order the callies 1 an 5 caps, will it hurt anything haveing two different brandcaps?
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Old Feb 4, 2007 | 09:02 PM
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No, they have to be fitted to the block and then line bored & honed to match the correct main dia.
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Old Feb 4, 2007 | 09:42 PM
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Not to hijack your thread, but I have a question that's relevant to the topic. I'm ordering some 4 bolt caps *2, 3, and 4* off of summit, most likely the straight bolt milodon caps. On summit it lists them as being large journal, small block chevy, I assume these are the correct ones? The block will be given to the machine shop so they can perform all the work.
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Old Feb 4, 2007 | 09:50 PM
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Those are the correct caps.
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Old Feb 5, 2007 | 06:56 PM
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What all has to be done to use the splayed caps? I know the block will have to be line bored. But I work in a machine shop(not auto related) and was tempted to buy the caps and install them myself.
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Old Feb 5, 2007 | 07:56 PM
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Have been using Pro-Gram caps for 5 years with NO problems at all
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Old Feb 6, 2007 | 12:02 AM
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Program Engineering caps on mine.... splayed.... I wouldn't use the straight bolt milodon caps... You can do splayed caps for the same price and they are stronger cause they hold the caps laterally in addition to vertically....

My conversion cost like $450 including the line bore and hone....
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Old Feb 6, 2007 | 01:10 AM
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Originally Posted by OutlawZ
My conversion cost like $450 including the line bore and hone....
How much was just the machine work? Drill, tap, bore and hone...
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Old Feb 6, 2007 | 10:02 AM
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Originally Posted by Red97Z
Not to hijack your thread, but I have a question that's relevant to the topic. I'm ordering some 4 bolt caps *2, 3, and 4* off of summit, most likely the straight bolt milodon caps. On summit it lists them as being large journal, small block chevy, I assume these are the correct ones? The block will be given to the machine shop so they can perform all the work.

Not unless you have a 400 block. The large journal caps will not work on a 350 block. The 400 has a larger main journal than the 350. I'm sure your machinist would catch this, well he would have no choice not to.

Good luck,
Dave
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Old Feb 6, 2007 | 10:42 AM
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Im also using ProGrams.

To add to what OutlawZ said above: The splayed caps are also stronger because the two new bolts/studs get threaded into a thicker part of the block. Ive been told by many that the straight bolt conversion caps will actually weaken the block as the new bolts are threaded into a thinner part of the webbing.
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Old Feb 6, 2007 | 01:05 PM
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I've converted blocks with the Eagle, Oliver and Pro Gram and I think the Pro Gram is the best.

Bret
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Old Feb 6, 2007 | 02:15 PM
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It cost me about $450 to get the caps square then pined and rough line bored.
then 100-375 to get the line hone. just depends on where you take it.
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Old Feb 6, 2007 | 05:16 PM
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my engine guy had the caps so perfectly machined into the block you could pick the block up by the caps without the bolts installed.....

here's what it looked like when he was done.....


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Old Feb 6, 2007 | 11:49 PM
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here is my pro-grams
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Old Feb 7, 2007 | 09:16 PM
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I just had a 383 built by golen, and I think he charged me $350 for the caps (parts & labor)
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Old Feb 8, 2007 | 12:36 AM
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aren't golen strokers the engines that several have posted on here as not making crap for HP?????

I seem to recall multiple posts by owners of golen strokers that barely put out like 350 RWHP.....
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Old Feb 8, 2007 | 09:19 AM
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A lot more depends on the H/C and other components besides the shortblock. Now if they're complaining about the Heads not performing or a longblock, then that's a different story.
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