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Doesn't it depend on the resistance the gauges are designed for and the resistance the sending units produce ? It not universal.

Probably to have a competitor cid wise with ford and chevs offerings around the same size and probably also distance it from the 360 more.

Basically most performance A Bodies are gonna fall between 10-15's cars and even a /6 with a power adder can do 10's, a 318 bore should be able to get you there NA, obviously the larger bores have the advantage but aren't absolutely necessary. Is a 360 bore better than a 383's no but for the...

I guess putting in a stock 361 2bbl wouldn't be the wisest of moves :)

I don't doubt it, but if built to take advantage of it's advantages like this 618 hp 361/412 it wouldn't of been and I'm sure you could do similar with a 360 but not because of smaller bore and valves, poorer rod and bore stroke ratios etc.. But in spite of them...

Technically the 361 still has advantages bore size is still a fair bit larger and you have access to all the aftermarket big block heads and if go stoker gonna produce more overall cid than a stroker 360, is a 361 really worth doing probably not.

@318willrun is this all academic or are you thinking about doing a 383 swap ?

Even though there's is some benefit to run a 383 at lower hp like gearing, a 360 would generally make more sense for most unless you have or would rather invest in the bbm platform, with 360 only place to go is basically 408, starting with 383 is ground floor up to 500+ cid are possible down the...

I'm not saying the 360 did or didn't make more overall power, but at least some of that 3 tenths could be that more than likely the gears and stall suited the 360 better. One of the main reasons to go larger less gear and stall generally needed.

My Avenger RT goes pretty good, there impressive little engines, got to be decently into the 300's gross hp, plus there geared to take advantage of the power they make. That's a 12.39:1 Total 1st gear Gear Ratios1ST 4.127, 2ND 2.842, 3RD 2.283, 4TH 1.452, 5TH 1.00, 6TH 0.69 Reverse 2.21...

That's family sedans numbers now :)

Eg.. A decent out of the box average available heads for 360 is SM, Eddy, Trick Flow, to build a 383 similarly would have to use similar hp capable heads as these which you can easily exceed with average available bbm ootb heads.

If you build them similar there gonna perform similar, it's just the 383 has a decent amount of advantages so if you built them similar you would of have to held the 383 back one way or another.

Plus were talking 70's tire technology. What does it matter what they ran stock 50 years ago.

I'm Guessing most people wouldn't run a ritter block cause of it's weight then? I'm sure strangely people would have little problem running a 4.25" bore taller deck small block for better rod ratios for 4-4.25" crank with add weight for strength.

Cause most would start with 400/440 don't mean a 383 can't, it's got enough bore and can take most of the same parts. Torque at peak hp is around 90% and peak torque for this kind of build should be able to get around 1.4 lbs-ft per cid so 389 x 1.4 = 545 tq x 90% = about 490 tq @ peak hp, 700...