A well built AOD or AODE. With the 3.73 gears, you're going to be taching very high at freeway speeds. An overdrive Transmission will at least drop your RPMs back down to a manageable level on the freeway.
with that kind of power i personally wouldnt even consider an auto. manuals are way too much fun. if youre building that kind of engine and running those gears you cant be worried about mileage and your engine should be just fine running high rpms. of course if you can afford it i think summit sells a richmond six speed for smallblock fords. thats the only tranny i would ever consider for a street car. but since i cant afford one i happily bang through the four on my toploader. just my opinion though
I have a C-4 that is so unmodified it scares me behind a 392W. Going on two years, no problems.
Interstate driving is not that much of a problem with a 1/1 transmission and lo gears. If you insist on running 80 or 90 with everybody else, your motor will be buzzing! All you have to do to live with lo gears is drop your cruising speed a little.
In my '68 with a well built 351W the first C-4 blew while on the test drive from the tranny shop. I am not sure what it was other than a lot of smoke and no more tranny. The second version they used the stronger pieces from later versions of the C-4 and worked fine until I sold the car. The best traction aid was a sometimes unwilling fat person in the back seat.
I have a toploader in my convertible. I wish instead of spending $600 to rebuild the toploader I had purchased a short shaft Tremec 3550 for the lower first gear and overdrive 5th gear. The vert has 3.25:1 rear gears and revs a little over 3,000 RPM at 70 MPH. Local freeway speeds sometimes exceeds 75 and even 80 MPH.
If you want an auto, any would work. A C4 will sap up the least HP from that 351. I ran mid 12's in my 70 coupe with a 351w, c4, 411 gears, and 9 inch slicks. Only mods to the trans was a rebuild, and a shift kit. Worked well.
UPS Delivered my parts bag opened with parts missing. Called NPD to get this fixed and they put the missing parts including a part I ordered too few in the mail to get me up and running NO CHARGE! Granted the parts were under $3 each but hey,
I converted my 65 Mustang to dual exhaust and now I need the hangers and the locations where they should be located. I see in the parts catalogs a bunch of hangers but I'm not totally sure of what I need or the mounting location. Does someone have an exploded drawing showing what's needed?
Good morning everyone-
I am planning to add EFI to my car over the winter and am wondering if anyone has experience with the Pro Flo 4. The Holley Sniper is a popular option and I’ve been thinking a lot about it, but can’t help but wonder if it’s somewhat antiquated at this point. Edelbrock...
after a total rebuild of my 66 fastback i am a bit disappointed by the car handling at 60+ mph
i still have a few things to do that should improve the car's stability.... i already have an exportbrace installed but still have to install a monte carlo bar... and just as with the exportbrace it...
Can this be taken off in the car or does it have to be lifted?
I have the issue with fuel pump eccentric not functioning. I’m planning to tear it down and pull timing cover off to see what’s happening. My fear is metal is missing and not in that cover so having to pull pan off to see if it’s...