8.5 inches, an inch longer than a small block PR at 7.5B engines are around 9 inches
8.5 inches, an inch longer than a small block PR at 7.5B engines are around 9 inches
Besides we're making more power at 7000 vs 8000 with the small block. lol
Ok so this is one I've been pondering for a bit. Just to preface, it's purely an academic exercise to see if I can learn something.
So, take a stroker SB of choice. Call it a 408. Could be 390, or 416. Now take a 383/400/or 413. No stroker big blocks, that's not in the spirit of the experiment.
Top these engines off with a decent set of heads. Nothing wild and exotic, but a good set of well prepped heads your typical dude might run. Appropriate and fairly equivalent supporting valvetrain, intake, exhaust, compression etc.
Which series engine would better, in terms of power and torque production, and why?
It's winter !Troublemaker. Lol
Probably cause the pistons speeds they could run and heads available, seems that piston speeds of 6,600 fps are now do able with the right equipment so that's 9,900 rpm with a 4" stroke or a 11,716 rpm with a 3.38 both higher than where a wedge engine can run at max efficiency.I remember when de-stroking a engine was done to make power ....
Wasn't like 7,500 rpm ?I wonder how many RPM's this engine turns to make it's 1350 HP. LOL
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One thing that requires consideration is end use. A light car for street, a car for racing or a work truck for towing.Ok so this is one I've been pondering for a bit. Just to preface, it's purely an academic exercise to see if I can learn something.
So, take a stroker SB of choice. Call it a 408. Could be 390, or 416. Now take a 383/400/or 413. No stroker big blocks, that's not in the spirit of the experiment.
Top these engines off with a decent set of heads. Nothing wild and exotic, but a good set of well prepped heads your typical dude might run. Appropriate and fairly equivalent supporting valvetrain, intake, exhaust, compression etc.
Which series engine would better, in terms of power and torque production, and why?
I think the stroker point was to get engines of close displacement to conpare. A 390 against the 383, or a 408 compared with a 400 or 413.But you don't have to spend the coin for all the stroker stuff. All comes down to heads, combination and the stronger block.
and capable of running 7.50's at a buck eighty @2900 #'s.Wasn't like 7,500 rpm ?
...per cubic inch!, not power.I remember when de-stroking a engine was done to make power ....
and yet many will prefer a 340 to make HP over a 360 .........per cubic inch!, not power.
A gen 2 hemi might make more power per cubic inch at 366, or 396, and that might allow a class car to run at a lighter weight (and launch better, as a result) but you are not gonna make more POWER with a 396 inch hemi, than a 572 inch version.
The old modified production cars usually ran the smallest practical engine for the weight class, cause the heads at the time could feed a 265/283 (272, 291, 301) at high rpm, much easier than a 350/365/383. The Fords ran the best heads they could find.... on a 221.
Depends on powerbands and efficiency of each.but you are not gonna make more POWER with a 396 inch hemi, than a 572 inch version.
I bet 340s probably on average make more usable power after peak hp to allow shift points higher to put more average power to the track.and yet many will prefer a 340 to make HP over a 360 ......
I would prefer a 318 with a 4" crank over either a stock stroke 360 or 340, for STREET power.and yet many will prefer a 340 to make HP over a 360 ......
I've got a hypothetical for you.and yet many will prefer a 340 to make HP over a 360 ......
Isn't it odd the smaller cube 340 and 400 are capable of producing more power with a bigger bore than a 440 or 360 in stroked form.Big Block 440 commando
bottom line is you have to grow the cubic inches or there is no conversation. This is all to me like saying a slant six with a turbo can beat a stock 340. I mean..... okIsn't it odd the smaller cube 340 and 400 are capable of producing more power with a bigger bore than a 440 or 360 in stroked form.
When comparing apples
Most people can't envision past what the factory deemed performance engines anyways, bet if the 318 came built with high CR 340 specs there would be less debates on here. I bet the 340 have less love, but that has little effect on it's capability.I've got a hypothetical for you.
Suppose a 360 in 1968, with 10 to 1 compression, good 2.02 heads, pretty good camshaft, good exhaust manifolds, 750 or therabouts thermoquad. And then, a few years later, to meet smog regs, they disco"ed the 360, and brought out a brand new 340..... with a nothing cam, a two barrel carb, log manifolds, and 7.5 to one compression.
Think there would be a lot of love for the 340?
(All of the above mods can be done to a 360, to outdo most 340s.)