Re: 71 440HP short block piston choice.
[Re: cdp]
#2704287
10/06/19 11:02 AM
10/06/19 11:02 AM
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Joined: Jan 2003
Posts: 1,237 North Central, Indiana
Roughbird72
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,237
North Central, Indiana
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90% cruiser, but might attend a few pure stock drags. Currently factory 4v, but will be adding 6-pack in future.
Another thought was a 440source/440-440, non-stroker kit.
I'm sure my original harmonic balancer will need reconditioned and it seems the heavy-rod balancer is also expensive to replace. Which adds to the cost. So, was considering a zero-balance motor. For a cruiser I would go with the KBs, find a good shop to do the machine work and balance. That would probably be your least expensive route.
72 Plymouth Roadrunner 11.08@123.25
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Re: 71 440HP short block piston choice.
[Re: cdp]
#2704291
10/06/19 11:18 AM
10/06/19 11:18 AM
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Joined: Feb 2005
Posts: 4,310 Prospect, PA
BSB67
master
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master
Joined: Feb 2005
Posts: 4,310
Prospect, PA
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Have you committed to what cylinder head? And if so, which one?
If you're committed to both factory original iron head, and decent performance, I cannot overstate the need for really good cylinder head work, which is usually not real budget friendly. Consider someone like Dwayne at Porter Racing Heads (PRH).
Also, piston choice should only be finalized after you've committed to the head, IMO.
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Re: 71 440HP short block piston choice.
[Re: cdp]
#2704331
10/06/19 01:28 PM
10/06/19 01:28 PM
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Joined: Feb 2006
Posts: 1,048 The Great White North
RAMM
super stock
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super stock
Joined: Feb 2006
Posts: 1,048
The Great White North
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Looks like I'll be pulling the #'s 440 out of my 71 GTX for a potential rebuild. I was wondering what we be the best piston choice to move to a flat top. I was considering the KB version. But was also considering the FM2355 sixpack piston. Thought its a heavy [censored], but same gram weight as current stock piston.
Need I say that its a budget shortblock build...
Thanks Chris I sent you an email. I have a set of JE forged flat tops for a really good price. 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: 71 440HP short block piston choice.
[Re: cdp]
#2704607
10/07/19 03:09 PM
10/07/19 03:09 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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But was also considering the FM2355 sixpack piston. Thought its a heavy [censored], but same gram weight as current stock piston. Need I say that its a budget shortblock build...Thanks Chris That'd save you rebalancing
live every 24 hour block of time like it's your last day on earth
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Re: 71 440HP short block piston choice.
[Re: quickd100]
#2704628
10/07/19 04:38 PM
10/07/19 04:38 PM
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Joined: Oct 2007
Posts: 4,205 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,205
New York
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I agree, if you have a good machinist (born before 1970) KB is great.
Boffin Emeritus
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