Bone stock 360 potential?

SC397 wrote: This combo with headers, 280H cam, Torker, and a 750 Holley would be really fun. http://www.ifsja.org/forums/vb/showthread.php?p=1701205#post1701205

Edited by 1982AMCConcord - Feb/15/2019 at 2:32pm

My crazy arse would be inclined to do the cam like probably no one else, lol.  Being that it doesn't have the compression ratio to justify a bunch of duration, I'd keep it at maybe 214* at .050 but tighten the lobe centers up to a 108, heck, a 107 LSA and set the intake centerline around 102 to 103.  Cams done like this tend to hit pretty hard.  That early ICL really drives the torque up on a lower compression engine.

I run a 360 with cast replacement pistons. Really low buck. 270 magnum cam. Performer intake and 600 performer carb, and hedman headers. Just a spare part throw together, and while I don't have power numbers, it's a nice little street engine.

304-dude wrote: I got excellent results with my stock 73 304. Changed from single exhaust to dual, and replaced the 2bbl intake and carb with an aftermarket 4bbl spread bore and 650 cfm carb to match. Stock cam, but I guess a 360 would do well with an RV cam and similar setup, for great city economy and added performance combined.

Buzzman72 wrote: 304-dude wrote: I got excellent results with my stock 73 304. Changed from single exhaust to dual, and replaced the 2bbl intake and carb with an aftermarket 4bbl spread bore and 650 cfm carb to match. Stock cam, but I guess a 360 would do well with an RV cam and similar setup, for great city economy and added performance combined. So what aftermarket intake allows you to use a spread bore carb on an AMC? I'm at a loss to name one.

I used a Offy 360 single port. I assume they are rare, and are single plane. Because I knew a 650 cfm carb was a bit big for the stock cam 304, and the intake its self was made for 360 and 401, I needed to use a spacer to compensate, along with smaller squirters and jetting. A 360 should handle a 650 cfm carb well enough without changes to the carb, as done with mine.

As a note... the spacer / heat blocking plates that I used allowed for customising hieght, but I managed to fit all of them with a spacer for the stock throttle bracket. Any higher the stock throttle would not work properly, as the lack of extrs length would pull and bind.

I had to use the included adapter ring to mount the factory air cleaner setup, which added another 3/4" to the total height. Luckily I had a 74 AMX hood at the time, as i am sure the stock hood would touch the air cleaner lid.

All the perf peeps tried talking me out of the combo, but once I finsihed the setup, the response and power had greatly improved over just having the dual exhaust on a stock 2bbl 304 engine. Before the change, the front would barely raise while rolling at 20 mph during a hard acceleration stuck in 2nd. After the change, it raised as if my engine had suddenly lost 170 pounds. This was back in 1990 at the time, and I had swapped in a Dodge 2.76 rear end, so gearing was not the best for off the line performance.