next big step on my car is a new c4 trans and id like to put a full manual valve body but idk how good it will be for a daily driver???? also found that they are only for 70s and up but i know of a 67 c4 at a junkyard for 150 bucks is there a difference in the transmissions? or do i need a 70 and up c4 to use on my 72 maverick??. also how hard is it to rebuild and install a valve body in a trans? ive never worked on a trans before thats why im asking so many questions thanks guys
You should use the 72 or later C4 - with the "push-in" modulator instead of the screw-in one on the earlier models. You will also get a stronger input shaft and the most availability on after market parts. Installing a manual valve body is easier than installing a stock unit. If you are going to have to buy a core and then pay to have it rebuilt just save your money and buy what you want from Jay at Broader Performance. You can get a 500 hp C4 for $850 (less if you mention that you are from the forums) and he has the ability to make what ever you want or need.
Hi Paul, I've noticed your post above. I have a 71 C4 that I plan on rebuilding. i got an estimate of $800 that would hold about 450 hp. I also heard great things about Broader Performance, in your opinion am I better off rebuilding? or just going with Jay's transmissions? Also, do Jay's C4's need any modifications to fit such as the speedy cable? Thanks
Hmmm...if I had known this, I wouldn't have been screwing around with a time-bomb C4 all this time. That is a great price, and he seems to have a really good reputation.
I have a Broader Performance 500HP Street/Strip C4's Its great but be prepared for some FIRM shifts. Great customer service. Jay is usually around in the AM to answer calls.
i already have some pretty firm shifts, but i doubt it will hold up to 350 hp for too much longer. Just a stock rebuild, no power improvements at all. I may need to give Jay a call soon. He is probably a 5 hour drive from me, and I have a "core" I can take him.
Jay also has a rebuild kit - the same parts he uses in his 500 HP C4s. You don't get the hard parts but you get the clutch kits and such. If you want a C4 that you can bolt in then Jay is the guy to get it from. When you talk to him tell him "Paul from Seattle sent you" - it may be worth something.
