501/521

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501/521

Post  1faststang on August 25th 2012, 9:32 pm

501/521.. if you had the choice.. what would you go with??.

The Car:
Fox Body Mustang Back Halfed with Ladder Bars
2800Lbs with Driver
9" Rear End 4:30 Gears
Power Glide Tranny
9" Convertor 5300 Stall
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Re: 501/521

Post  quick 52 on August 25th 2012, 10:46 pm

i think i would go with a 521 that what my plans are. the kit ford sells are cheap and easy to get its said easy 600hp with with ok heads and street cam still low compression to run pump gas

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Re: 501/521

Post  cool40 on August 25th 2012, 11:19 pm

if you've got a choice go big as you can.IMO Smile
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Re: 501/521

Post  dfree383 on August 26th 2012, 12:00 am

if your buying new stuff build a 545-557..........
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Re: 501/521

Post  1faststang on August 26th 2012, 1:05 pm

dfree383 wrote:if your buying new stuff build a 545-557..........

I would..but my cam's too small IMO .715/.710
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Re: 501/521

Post  dfree383 on August 26th 2012, 1:13 pm

Don't build a motor around a cam.........
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Re: 501/521

Post  1faststang on August 26th 2012, 1:28 pm

dfree383 wrote:Don't build a motor around a cam.........

I understand that.. But don't you think its a bit small for those kind of cubes?
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Re: 501/521

Post  dfree383 on August 26th 2012, 1:32 pm

Just stating the lift doesn't mean squat.......

Theirsmore to it.
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Re: 501/521

Post  1faststang on August 26th 2012, 1:37 pm

dfree383 wrote:Just stating the lift doesn't mean squat.......

Theirsmore to it.

Very True!

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Re: 501/521

Post  jbozzelle on August 26th 2012, 3:49 pm

If you're spending money on a rotating assembly buy as big as you can and spend the other 400 or so and get a custom cam too...

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Re: 501/521

Post  1faststang on August 26th 2012, 7:07 pm

jbozzelle wrote:If you're spending money on a rotating assembly buy as big as you can and spend the other 400 or so and get a custom cam too...

Already have the custom cam... had it purchased before I knew there was so much damage done to my 501 when a lifter let go.
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Re: 501/521

Post  bigblok2000ranger on August 31st 2012, 10:32 pm

If you had the cam spec'ed to the 501 why change the combo? Won't be optimum if you go changing stuff.
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Re: 501/521

Post  dfree383 on August 31st 2012, 10:58 pm

Sell the cam.... Get the proper one.... clown
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Re: 501/521

Post  richter69 on August 31st 2012, 11:05 pm

cam is the last piece to the puzzle.........
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Re: 501/521

Post  56Tbird on September 1st 2012, 12:25 am

The 557 with a small cam will out run a 501 with the "right" cam.Build as big as you can for the same money and use your cam . The results will amaze you!! cheers king
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Re: 501/521

Post  1faststang on September 1st 2012, 9:18 am

56Tbird wrote:The 557 with a small cam will out run a 501 with the "right" cam.Build as big as you can for the same money and use your cam . The results will amaze you!! cheers king

I was kinda thinking the same.. The only thing I may have too much gear with the Powerglide and 4:30 rear end gears.. Don't want to be crossing the stripe reving the guts outta her confused confused
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Re: 501/521

Post  richter69 on September 1st 2012, 10:37 am

what are the cam specs?
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Re: 501/521

Post  Lem Evans on September 1st 2012, 11:12 am

richter69 wrote:what are the cam specs?

X2 . The duration and LSA is more of a factor than the lift i.m.o.

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Re: 501/521

Post  1faststang on September 1st 2012, 11:31 am

richter69 wrote:what are the cam specs?

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Re: 501/521

Post  Lem Evans on September 1st 2012, 11:41 am

Cyl. heads?

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Re: 501/521

Post  1faststang on September 1st 2012, 11:43 am

Lem Evans wrote:Cyl. heads?

Blue Thunder 73CC 2.250 Intake 1.880 Exhaust Chevy Exhaust Ports
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Re: 501/521

Post  Lem Evans on September 1st 2012, 11:45 am

Do you have a target for compression ratio?

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Re: 501/521

Post  1faststang on September 1st 2012, 11:47 am

Lem Evans wrote:Do you have a target for compression ratio?

If I build.. I was thinking around Around 12:5:1.. If I went with a 501/521. I want something that runs on C12. If I were to build a 545/557 I realize It would probably have to be higher??

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Re: 501/521

Post  richter69 on September 1st 2012, 11:55 am

sell the cam and get one more suited for your combo, imo thats too small for a 466 lol
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Re: 501/521

Post  Lem Evans on September 1st 2012, 11:56 am

A flat top piston in a 521" engine will put you near your comp. ratio target.

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