rallycar01

getting ready to start the build of my 69 351w stroker. just wanted to know what trani you guys are running with you 408's . im lookin at some seroius power 740 rwhp so im going to need somethin that will hold this power and last for awhile. My machinest gave me a number to call, its his trani guy that builds trani's to hold 8 second cars, but just courious what your running, and how well you like it? thanks

HYPEracing

id be looking at a power glide, or a C-4 if i were you. C-6's are strong, but use a lot of power...

uedlose

C-4 will hold that kind of power but be looking to go though it every year to keep a eye on it and fresh-in it up

rallycar01

that is an option for the c-4....my brother has an extra one from his 69 stang

S351R13

If you go with a C-4 get a PA. The warranty is good and they will take alot. Your local tranny guy probably won't offer the same warranty as PA. As far as a glide I only know a few high end shops here that build them .

rallycar01

not to sure what your talkin about s351.....the c4 came with his 66 289. he has two of them and one was a parts car....and my brother had a extra c4 that he would give me, so didnt plan on buying one new if thats what your talkin about..PA, don't know what that is...a type of c4? ....i really don't know to much about them so a little more detail would be good....columbus ohio....thats where im from if your talkin about the PA thing i duno let me know....but really just want to know if anyone is running this HP and what trani they are useing and if they like it...thanks guys

HYPEracing

well i had my 381 before it blew up putting out 491 rwhp though a C-4 with no hickups. i am building a bigger motor now, and i will have no issues keeping that tranny in there.

S351R13

PA = Peformance Automatic. Google them. They build a C4 that will stand up to the power level you are wanting. If your trying for 740 rwhp then you may want to do alot more research. A realtively stock C4 won't live behind that much power. If your using a stock production block it won't live making that much RWHP very long. The rpms will kill it. 700 at the flywheel is pretty much the limit. As for the tranny weight will come in to play as to which one you want. If your car is not light I would suggest a glide or if you are really concerned about getting the most out of it go with a glide. If its a bracket car then go with a C-4. My last race car ran 8.90's at 3500 lbs. with a PA C4. The PA C-4 lived but, I went 8.76 swapping to a glide. In the eigth it wasn't as noticeable.

Atencio

I would run powerglide all the way. My buddy kept gernading C4's with his 408.

kweb288

a lentech aod would hold that (from what ive seen on there website) and it gives you the option of having an overdrive gear