***UPDATE ON 440 SOURCE HEADED STROKER***
#198718
01/20/09 03:04 AM
01/20/09 03:04 AM
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Joined: Jan 2003
Posts: 5,486 SoCal
Brian Hafliger
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OP
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I finally dyno tested this 505 cid (4.350x4.250) mopar with 440 source heads that I ported. 9.8:1 custom hyd. roller grind using new xfi lobe ported source heads MP dual plane intake 1000HP holley 1 7/8 headers Made 614TQ @3900rpm and 534HP @5200rpm. Idles nice at 850rpm. Here's a link to the porting post I started a few weeks ago and some pics.... https://board.moparts.org/ubbthreads/show...rue#Post4858551
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Re: ***UPDATE ON 440 SOURCE HEADED STROKER***
[Re: 512 VALIANT]
#198727
01/20/09 01:17 PM
01/20/09 01:17 PM
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Joined: Jan 2003
Posts: 5,486 SoCal
Brian Hafliger
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Quote:
DO YOU HAVE FLOW #'S ON THE HEADS THAT YOU PORTED?
At the very top of this page, just above the first pic, there is a link to my post on porting those heads. I did not do a whole heck of alot of porting to them, rather just a mild street port job. No sand rolling, just re-did the valve job, slight chamber work, slight bowl work on intake and more on ex., and opened up the pushrod pinch on the intake side. That was it! Brian
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Re: ***UPDATE ON 440 SOURCE HEADED STROKER***
[Re: Brian Hafliger]
#198728
01/20/09 01:38 PM
01/20/09 01:38 PM
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Joined: Jan 2003
Posts: 16,123 Grand Haven, MI
patrick
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I Live Here
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would be interesting to see back to back pulls of that intake vs. an eddie RPM intake...
scratch that, just read in the other post you think it's a copy of the RPM...
Last edited by patrick; 01/20/09 01:40 PM.
1976 Spinnaker White Plymouth Duster, /6 A833OD 1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!*** 2011 Toxic Orange Dodge Charger R/T 2017 Grand Cherokee Overland 2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: ***UPDATE ON 440 SOURCE HEADED STROKER***
[Re: ZIPPY]
#198730
01/20/09 02:08 PM
01/20/09 02:08 PM
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Joined: Jan 2003
Posts: 5,486 SoCal
Brian Hafliger
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OP
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Posts: 5,486
SoCal
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Quote:
Nice torque numbers!
The first time the car owner does a 360 trying to leave an intersection, he might reconsider the tire choice...
LOL...yeah I'd pay $$$ to see the look on his face when he does stab it to see what it's got.
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Re: ***UPDATE ON 440 SOURCE HEADED STROKER***
[Re: Brian Hafliger]
#198734
01/20/09 08:50 PM
01/20/09 08:50 PM
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Joined: Jan 2003
Posts: 16,928 NC
440Jim
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Quote:
Made 614TQ @3900rpm
That thing is a torque monster, stump puller... @ 3900 rpm!
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