Re: 540" short block
[Re: Fast Yeti]
#691777
05/07/10 08:31 PM
05/07/10 08:31 PM
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Joined: Jan 2003
Posts: 17,918 Akron, Ohio
ProSport
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,918
Akron, Ohio
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Sounds awesome Tom! An 8" may be too loose for the nitrous if you're still gonna run it.
1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
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Re: 540" short block
[Re: AndyF]
#691780
05/07/10 08:41 PM
05/07/10 08:41 PM
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Joined: Apr 2007
Posts: 404 Dana Point, CA
Fast Yeti
OP
mopar
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OP
mopar
Joined: Apr 2007
Posts: 404
Dana Point, CA
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Thanks Andy. I have Harland sharp rockers. they are only 1.5 I think they should be ok. Good book Andy. I bought it a few months ago. Great info.
Last edited by Fast Yeti; 05/07/10 08:42 PM.
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Re: 540" short block
[Re: Fast Yeti]
#691782
05/07/10 10:22 PM
05/07/10 10:22 PM
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Joined: Jan 2003
Posts: 16,925 NC
440Jim
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I Live Here
Joined: Jan 2003
Posts: 16,925
NC
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Quote:
I decided to have Muscle Motors build me a new 540" short block. ... I am going to sell my 496" short block. ... I need to go to a 4.56 gear from the 4.10 ...
I don't understand why you would take the 4.10 gear out. What size slicks are you running? I would think 9.0 and 150 mph could be close with the right head porting. I don't even have a roller cam in my 511.
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Re: 540" short block
[Re: Fast Yeti]
#691785
05/07/10 11:27 PM
05/07/10 11:27 PM
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Joined: Jan 2003
Posts: 9,994 Frostbitefalls MN (Rocky&Bullw...
gregsdart
master
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master
Joined: Jan 2003
Posts: 9,994
Frostbitefalls MN (Rocky&Bullw...
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I follow what the others say, you might want to try the converter and gears you have. The motor might like to shift at 6700 with a big rollercam, 280+ intake duration at .050, and may be OK with your converter, or maybe loosen it up some.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 540" short block
[Re: 69CHARGERMD]
#691788
05/08/10 06:15 AM
05/08/10 06:15 AM
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Joined: Apr 2004
Posts: 12,339 somwhere
smokinwoody
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I Live Here
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Posts: 12,339
somwhere
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Quote:
So, What are you doing with the old short block ??
he's selling it Doug...
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Re: 540" short block
[Re: Fast Yeti]
#691796
05/08/10 09:04 AM
05/08/10 09:04 AM
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Joined: Jan 2003
Posts: 16,925 NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,925
NC
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Quote:
Jim I was running a 315/60 drag radial approx. 30" tall. I recently switched to 31x16.5 QTP that are 31" tall and will have some growth. I should trap at 7300 rpms in the 1/4. my 496" set up was a street/strip combo; pump gas and I used nitrous at the track so the 4.10 worked well. Now I am going to run all motor with a taller tire and the 4.56 seems to be best for wringing everything out of this combo.
Sounds like you have figured everything in. My 2-cents with over 500 CID is to start with the gears you have now (4.10), that might be just fine. After running it that way for awhile, you can always put more RPM to it later. The car might mph better than you think (145 vs 138?), and drive the RPM up accordingly. And all that torque will likely pull the 4.10/31" just fine (especially if you are running a torqueflite).
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Re: 540" short block
[Re: Fast Yeti]
#691802
05/09/10 08:32 AM
05/09/10 08:32 AM
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Joined: Feb 2003
Posts: 1,646 Ontario,Canada
firefighter3931
top fuel
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top fuel
Joined: Feb 2003
Posts: 1,646
Ontario,Canada
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Quote:
Hi Ron, I sure plan on being there with it. New tubs and body work are done, now I just need the motor and am ready to go. this time the car will be 250lbs less and 100+ hp more than the last time we were all there in Sept. a few yrs ago.
Cool....looking forward to seeing it run !
Ron
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Re: 540" short block
[Re: Fast Yeti]
#691804
05/09/10 09:17 AM
05/09/10 09:17 AM
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Joined: Nov 2009
Posts: 2,177 ill
dennismopar73
top fuel
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top fuel
Joined: Nov 2009
Posts: 2,177
ill
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i just got thru putting 540 in 67 coronet on alky @3800# took 456 out put 410 in on 29 tall tire i do think the motor will go 7 plus rpms plus it do not think it needs to spin there i figure the max hp is @620ish ? the block is just a standard production but does have girdle,crete but i dont think anyone should use a stock block in this combo jmo solid cam stx 22 with 1.6 rocker makes it like 720 lift rpm heads ported max i really think should found some 370 gears put in the traps around 6300 i do not want to spin above 6800 rpms
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