340 cam in a 318

318willrun said
I guess I'm assuming at least a 4bbl and dual exhaust, why would one install a 340 cam and leave the 2bbl on there. I haven't experienced a 340 cam with the factory 318 2bbl. I'd guess it would run just fine but .... .. .

toolmanmike said
You never know and we don't know.

318willrun said
I'd bet the 340 cam would do just fine with a stock 318 2bbl on top, I just haven't tried that.

I did it back in my broke college days... It ran fine with a 2 bbl and stock 318 heads... Except my engine had 10.5 TRW pistons... It idled at 24" Hg and got 17.75 MPG...

I had to upgrade to 360 heads because the compression was too high and it would overheat on days that were over 80° F with the higher compression pistons... When I installed the 360 heads, I also put a square bore dual plane intake on it with a 600 Holley... That brought my idle vacuum down to 22.5" hg...

toolmanmike said
At what rpm? How about needing a converter and/or rear gears to make it work. (318 with a 340 cam and nothing else) Asking for a friend.
:lol::lol: Another 318 cam thread. Here we go again.

I had stock 904 trans and converter with 2.76 gears.... Tell your friend...