Otherwise, wouldn't it be near $1000 to get all that done? That is about 1/2 way to a 445 stroker I think, which would add some truly serious low end to the big Bird.Īs far as the muffs, good comment - we once had some old 2" dual Sears Muzzlers on our tripower 390 Gal. So if there is some pesky nailhead Buick Riviera that's beating you by a carlength and brags about it at weekly block parties right on your street, it would be worth it. The FPA's Kyle suggests sound like the way to go if any, but would only add about 10ftlb / 10hp to the stock 63 390. The Gonk says they are about 280-285 honest gross hp. Is it a waste of time to try to improve a cast Iron mainifold system ? I don't think there is room in there for any kind of tuned headers (besides no one lists a header application for the 63 Thunderbird 390) I would think that the exhaust pulses would be so mixed up and confused after being jammed together in the Iron manifolds that no amount of plumbing could improve the scavenging, and you could only hope for minimum back pressure to improve performance. I have been reading lots of info on the topic, and it's hard to tell what seems to work. The question is: If you run the Iron manifolds into two mufflers, does the X-pipe do any good at all ? keep the stock Iron manifolds, add X-pipe and dual mufflersĭue to an extremely tight engine bay, the most feasible (and cheapest) combination I can see would be the existing Iron manifolds, x-pipe, and dual flow-thru mufflers. 180 degree headers (almost impossible on a street car) and dual mufflersģ. tuned tubular headers, x-pipe and dual mufflersĢ. I see that there are some options for jazzing up the exhaust but space is very tight.ġ. I have a stock 1963 Thunderbird (FE 390) with the stock 8 into 1 restrictive exhaust.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |