Hey smart engine guys... can you help me?

jimharvard said
I am getting very close to tracking down a beloved fastback formula s to buy. But I am facing the big block vers small block issue. So here's the question:
1. do any of you know the weight of the old stock 340's ... 67-69?
2. do any of you know the weight of the old stock 383's and 440's?
3. does anyone make an aluminum big block close to the weight of a 340?

now on an entirely different point....

my wonderful high school 340 formula s was a 4 speed and the plymouth mechanic who ordered it got it with the "optional" 4 speed cam. Do any of you know the specs (lift, duration, exhaust..etc) of the "optional" cam that could be ordered in 1968 for the 4 speed formula s?????

I appreciate any help you guys can offer ... this a body site is the best i've found on the internet..

jim coster, pittsburgh... (soon to be "fishing" again)


Slant 6 -------------------------------------------- 525
273-340 ------------------------------------------- 525
360------------------------------------------------- 550
361-400 ------------------------------------------- 620
413-440 ------------------------------------------- 670
426 Street Hemi ----------------------------------- 765

If you take a 383 at 620 lbs, -10 lbs Alum water pump, -50 lbs alumnum heads, -15lbs aluminum intake. You now have a 545 lb big block. Make it a stroker and you have a 550 lb 500ci monster, with a mild cam, you will be running 11's.