Re: Hemi-style caps for B/RB
[Re: topside]
#2860329
12/15/20 03:22 PM
12/15/20 03:22 PM
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Joined: Sep 2003
Posts: 19,396 north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,396
north of coder
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those look like very nice caps. however, i have always wondered if the big block had enough wall material in the skirt for cross bolt caps. how much would the minimum wall thickness have to be after the spot face for the bolts ?
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Re: Hemi-style caps for B/RB
[Re: AndyF]
#2860611
12/16/20 09:07 AM
12/16/20 09:07 AM
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Joined: Feb 2006
Posts: 1,051 The Great White North
RAMM
super stock
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super stock
Joined: Feb 2006
Posts: 1,051
The Great White North
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Yeah the 512 low deck in my Duster is done that way. It is a bunch of work and not really worth it in the end. The article states that the new design doesn't interfere with the oil pan bolts. When did you do this Andy? J.Rob
2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3
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Re: Hemi-style caps for B/RB
[Re: RAMM]
#2860732
12/16/20 01:08 PM
12/16/20 01:08 PM
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Joined: Jan 2003
Posts: 31,027 Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 31,027
Oregon
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Yeah the 512 low deck in my Duster is done that way. It is a bunch of work and not really worth it in the end. The article states that the new design doesn't interfere with the oil pan bolts. When did you do this Andy? J.Rob Not sure, maybe 20 years ago.
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Re: Hemi-style caps for B/RB
[Re: AndyF]
#2861352
12/17/20 03:37 PM
12/17/20 03:37 PM
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Joined: Dec 2011
Posts: 201 Texas
Chief
enthusiast
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enthusiast
Joined: Dec 2011
Posts: 201
Texas
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I have a set of Pro Gram 4 bolt caps for sale in the for sale section. Ad #2828673 about 1/3rd of the way down the page. They were installed on my 400 block, but they could be line bored for a RB. Align boring would need to be done anyway. 200.00 plus shipping. Pro Gram Main Caps Dave
Dave Covey
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Re: Hemi-style caps for B/RB
[Re: topside]
#2861656
12/18/20 10:36 AM
12/18/20 10:36 AM
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Joined: Nov 2015
Posts: 876 Missouri
jwb123
super stock
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super stock
Joined: Nov 2015
Posts: 876
Missouri
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I installed a similar set of caps on a 440. I taught at a tech school, and the machine shop did the work so cost was not an issue. But after three seasons of running pulled it apart to freshen, and it had cracks between the cam journal and the no. 2 main bearing web. Over the years, I did all the normal stuff, block filling, different main caps, girdles, etc. As many have said, if you are building anything much over 600hp, get an after market block, at least they are making them again.
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Re: Hemi-style caps for B/RB
[Re: 67_Satellite]
#2861869
12/18/20 06:11 PM
12/18/20 06:11 PM
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Joined: Jan 2003
Posts: 31,027 Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 31,027
Oregon
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If the Mopar engineers had been thinking they would have cast the bosses in the side for the cross bolts and just left them unmachined on the production blocks. It would not have cost any more money but it would've made the blocks capable of being properly cross bolted down the road. They could sold cross bolted wedge blocks over the counter thru Direct Connection. They just weren't thinking that far ahead.
They did produce some cross bolted wedge blocks for NASCAR so they knew how to do it. They just never convinced the production guys to add the material for the bosses.
Last edited by AndyF; 12/18/20 06:12 PM.
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Re: Hemi-style caps for B/RB
[Re: AndyF]
#2862391
12/20/20 12:37 AM
12/20/20 12:37 AM
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Joined: Jan 2003
Posts: 3,504 DFW
mr_340
master
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master
Joined: Jan 2003
Posts: 3,504
DFW
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If the Mopar engineers had been thinking they would have cast the bosses in the side for the cross bolts and just left them unmachined on the production blocks. It would not have cost any more money but it would've made the blocks capable of being properly cross bolted down the road. They could sold cross bolted wedge blocks over the counter thru Direct Connection. They just weren't thinking that far ahead.
They did produce some cross bolted wedge blocks for NASCAR so they knew how to do it. They just never convinced the production guys to add the material for the bosses. I have a 426 marine block that has the bosses cast in to the sides like a Hemi block. They are not machined, but the bosses are there.
Floyd Lippencott IV
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Re: Hemi-style caps for B/RB
[Re: cudaman1969]
#2862394
12/20/20 12:45 AM
12/20/20 12:45 AM
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Joined: Nov 2004
Posts: 2,825 Sk. Canada
RemCharger
master
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master
Joined: Nov 2004
Posts: 2,825
Sk. Canada
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The bean counters saved 4 cents a block NOT doing that. 750,000 440's X 4 cents is $30,000 bucks over about 12 years!! That guy got a raise!!
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Re: Hemi-style caps for B/RB
[Re: mr_340]
#2862398
12/20/20 01:03 AM
12/20/20 01:03 AM
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Joined: Jan 2003
Posts: 31,027 Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 31,027
Oregon
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If the Mopar engineers had been thinking they would have cast the bosses in the side for the cross bolts and just left them unmachined on the production blocks. It would not have cost any more money but it would've made the blocks capable of being properly cross bolted down the road. They could sold cross bolted wedge blocks over the counter thru Direct Connection. They just weren't thinking that far ahead.
They did produce some cross bolted wedge blocks for NASCAR so they knew how to do it. They just never convinced the production guys to add the material for the bosses. I have a 426 marine block that has the bosses cast in to the sides like a Hemi block. They are not machined, but the bosses are there. I saw a block like that a few years back but I didn't have a camera with me at the time. Is there a casting number on the back of the block by the oil pressure port? What does the ID pad say? I don't remember what the ID pad said on the block I saw but I remember that it was a 426 wedge block. The guy who owned it said it came out of a NASCAR shop.
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Re: Hemi-style caps for B/RB
[Re: AndyF]
#2862410
12/20/20 01:53 AM
12/20/20 01:53 AM
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Joined: Jan 2003
Posts: 3,504 DFW
mr_340
master
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master
Joined: Jan 2003
Posts: 3,504
DFW
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No casting number on the block that I could find, but it looks like the industrial block. I apparently didn't take a photo of the pad, but as I recall it had 426 MAR on it. I don't know if these were the ones they used in NASCAR or not. I seem to remember reading that the Petty's used the Hemi block and drilled and tapped the top row of head bolt holes. Chrysler probably dropped off truck loads of parts to them back in the 1960s and 1970s.
Floyd Lippencott IV
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Re: Hemi-style caps for B/RB
[Re: mr_340]
#2862691
12/20/20 08:18 PM
12/20/20 08:18 PM
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Joined: Jan 2003
Posts: 1,020 Andrews,In. U.S.of A.
67_Satellite
super stock
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super stock
Joined: Jan 2003
Posts: 1,020
Andrews,In. U.S.of A.
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If the Mopar engineers had been thinking they would have cast the bosses in the side for the cross bolts and just left them unmachined on the production blocks. It would not have cost any more money but it would've made the blocks capable of being properly cross bolted down the road. They could sold cross bolted wedge blocks over the counter thru Direct Connection. They just weren't thinking that far ahead.
They did produce some cross bolted wedge blocks for NASCAR so they knew how to do it. They just never convinced the production guys to add the material for the bosses. I have a 426 marine block that has the bosses cast in to the sides like a Hemi block. They are not machined, but the bosses are there. This. Wouldn't it have been nice to go to the boneyard and pick a 400" "B" block from a 77 Newport and throw on a crossbolt upgrade kit and have a 1300-1500 H.P, tolerant package?What could have been....
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