Re: Building a 540 mega block
[Re: RoadSkinner]
#2295026
04/27/17 02:25 PM
04/27/17 02:25 PM
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Joined: Feb 2005
Posts: 20,179 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,179
PA.
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When I went to assemble my 572 years ago (4.5 bore, 4.5 stroke) with mopar journal size my crower billet rods hit the cam (bolt and nut style rod). I rebalanced with a set of K1 rods and all was well. I have since has my crank cut down to Chevy size
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: Building a 540 mega block
[Re: RoadSkinner]
#2295046
04/27/17 03:07 PM
04/27/17 03:07 PM
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Joined: Dec 2007
Posts: 12,587 Great Neck,LI,new york
hemi-itis
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 12,587
Great Neck,LI,new york
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15+ years ago,Lou Vignogna put together my Mega block with a 4.5 stroke and 4.310 bore.
Last edited by hemi-itis; 04/27/17 03:09 PM.
HEMI-ITIS has no cure. My condition is fully BLOWN!!
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Re: Building a 540 mega block
[Re: FastmOp]
#2295056
04/27/17 03:20 PM
04/27/17 03:20 PM
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Joined: Jan 2003
Posts: 13,365 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,365
Marion, South Carolina [><]
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I thought aluminum rods cleared and it wasn't until you went 4.750 stroke that the cam got in the way I've always heard that 4.75" stroke w/ 2.2 journal steel rods will clear a std. cam height block, but aluminum will need a raised cam location. Not sure where the end of the line is with the big mopar rod journals though.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Building a 540 mega block
[Re: RoadSkinner]
#2295182
04/27/17 07:02 PM
04/27/17 07:02 PM
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Joined: Jan 2003
Posts: 5,762 Hot Rod Ridge
FastmOp
master
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master
Joined: Jan 2003
Posts: 5,762
Hot Rod Ridge
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Just make sure you check it but I think you will be ok. Sometimes a redegree of the cam will gain you room.
So what's the plan to make 1200hp? Nitrous?
Last edited by FastmOp; 04/27/17 07:02 PM.
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