what gears should i run

[bbc_cutty]

hey guys, im stuck on what gears i will be running

im running a th400 with a 3000 stall (3spd)
472 BBC that i dont want to rev more then 6200 RPM *MAX* in the 1/4 mile
ford 9" rearend
running a 15x15.5x32" tall tire right now, but will be running a 30" tall tire soon

would like to run through the trap at 6000rpm

im thinking 4:88, or 4:56, is this too much gear?

i will also be doing weeknd cruises i have 390 gears sitting on a shelf, but im think they are not enough gear for what i need.

any advice will help, thank you in advance

 

[bowtie81]

the 456 should work well for you

 

[alowerlevel]

Theres a couple good calculators here that should help you out http://www.wallaceracing.com/Calculators.htm

 

[lilbowtie]

E-mailed you a spread sheet - should help. (might have done it twice)

 

[bbc_cutty]

thanks for the help guys!

 

[454RAT]

it really depends on how effecient your converter is. I would go with 4.11 maybe at most 4.30

what brand is the converter?

 

[bbc_cutty]

it really depends on how effecient your converter is. I would go with 4.11 maybe at most 4.30

what brand is the converter?

converter is just a b&m for right now, im going to upgrade to a buillit soon enough

 

[toxicbu]

i had a 468 in my malibu th 400/ 3800 tci converter and 456 gears id go throu the traps at 6500 rpm in the 1/4 -284 comp cam 544 lift 8 to 1 compreshion..if u want to go throu at 6200 id say go with a 430gear.

 

[454RAT]

that b&m converter is going to produce some slip, I would look at 4.30 to 4.11 then.

 

[bbc_cutty]

i had a 468 in my malibu th 400/ 3800 tci converter and 456 gears id go throu the traps at 6500 rpm in the 1/4 -284 comp cam 544 lift 8 to 1 compreshion..if u want to go throu at 6200 id say go with a 430gear.

what size tire tho...average street tire is 26-28, im running a 32"