You know I'm not anti 383. My fastback had several until I upgraded in the early 2000's to a 451.
Still have a low use blueprinted 383 with a nice set of ported 915's under the bench.
Good Streetabe Power
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Still have a low use blueprinted 383 with a nice set of ported 915's under the bench.
A 318 with a 1.925 intake valve would have similar valve shrouding as a 2.02 in a 360 bore. Obviously a 318 has more valve shrouding but what does that actually translate to in hp in a average 300-450 hp build where your generally not using all the available flow for hp anyways ? I haven't seen any evidence that it's substantial in any way.
And again not the point of the thread.
And again not the point of the thread.
I just watched the first video. Too bad he couldn't have used 2 cams that were closer to the same specs and engines that were similar. No reason to debate that, just an observance. Just sayin.
The Ford 302 was a hydraulic roller with 1.6 rockers and .555/.565 lift 274/282° (similar)
The Chevy 350 was a hydraulic flat tappet with 1.5 rockers and .477/.480 lift. 268/280° (similar)
2 different engines and 2 different (not similar) cams.
Where does a 318 or 360 fit into this, is there a test comparing a 318 to a 302
Agree been nice if they all had same specs xe274hr even the LS
Well you got to imagine the 350 would of done a decent amount better with a xe274hr and like that second video where they put better heads with that cam (his favorite for a street 5.0l cam) on a 302 for an increase of 312 hp to 418 hp obviously the 350 would do similarly as well.
Basically same with any of our V8's and we only got one smaller than a 302 so to me similar ideas on a 318-440+ should be able to accomplish similar is my point.
Both engines got a nice bump in power and torque over the stock cams they tested. That was the idea of the test really and not necessarily to compare the two side by side.
You guys seem to want it to be about 318's, my point is to show the ones that might not understand engines all that well and want to build a decent amount of streetable power that they can do it without camming the **** out of it. You can use under 230 degrees and get into to 400's of hp or 300's if that's all you want.
It's just a general concept basically good heads mild cam basically like stock gen 3 hemi or LS or even the Magnum or the good old 340 to lesser extent.
I agree with you there. Many of us (the hobbyists in general) don't want or need maximum horsepower, big cubes, or an all out race engine. Pretty much any A body with 3-400 horse can be a lot of fun and not spend a butt load on the combination. Just sayin.
cookietruck
Well-Known Member
Yeah i think ive seen it stated before, a working short block, good heads, choose a cam that suits the purpose and it will be a nice motor.
And 273 is pointing out you can make good power with the 218-230 cams…which work well with non race gears and converters. Well mannered i guess you could say.
AFB or AVS carbs are able to richen the top end with different metering rods.
Here's low cr 318 4bbl headers and xe262h cam 218 @ 0.050" imagine with more cr and better heads.
3-8-Teen Dream
or imagine this build with a little less cam and cr
Chrysler 318 Engine - A Powerplant To Brag About
3-8-Teen Dream
| TORQUE SUPERFLOW 901 DYNO-TESTED AT WESTECH | |||
| RPM | BASE | MOD 1 | MOD 2 |
| 2,000 | 292 | ||
| 2,500 | 287 | ||
| 3,000 | 287 | 338 | 336 |
| 3,500 | 272 | 335 | 340 |
| 4,000 | 248 | 326 | 330 |
| 4500 | 218 | 309 | 319 |
| 5,000 | 188 | 285 | 296 |
| 5,500 | 250 | 258 |
| HORSEPOWER SUPERFLOW 901 DYNO-TESTED AT WESTECH | |||
| RPM | BASE | MOD 1 | MOD 2 |
| 2,000 | 112 | ||
| 2,500 | 137 | ||
| 3,000 | 164 | 193 | 192 |
| 3,500 | 182 | 224 | 227 |
| 4,000 | 189 | 248 | 252 |
| 4,500 | 186 | 265 | 274 |
| 5,000 | 179 | 271 | 282 |
| 5,500 | 262 | 270 |
or imagine this build with a little less cam and cr
Chrysler 318 Engine - A Powerplant To Brag About
| RPM | TQ | TQ | HP | HP |
| BASE | PORTED | BASE | PORTED | |
| 3,000 | 335 | 335 | 192 | 192 |
| 3,200 | 342 | 340 | 208 | 207 |
| 3,400 | 351 | 356 | 228 | 231 |
| 3,600 | 365 | 369 | 250 | 253 |
| 3,800 | 374 | 379 | 271 | 274 |
| 4,000 | 379 | 384 | 289 | 293 |
| 4,200 | 378 | 383 | 302 | 306 |
| 4,400 | 375 | 383 | 314 | 321 |
| 4,600 | 376 | 382 | 329 | 335 |
| 4,800 | 375 | 386 | 343 | 353 |
| 5,000 | 372 | 384 | 354 | 366 |
| 5,200 | 367 | 383 | 363 | 378 |
| 5,400 | 361 | 379 | 371 | 390 |
| 5,600 | 355 | 374 | 379 | 399 |
| 5,800 | 350 | 371 | 386 | 409 |
| 6,000 | 345 | 365 | 395 | 418 |
| 6,200 | 341 | 360 | 402 | 425 |
| 6,400 | 329 | 345 | 401 | 421 |
cookietruck
Well-Known Member
The heads on the hot 318 were engine quest.
The ported heads got 2.03” intake valve…
Wonder if the ported heads would’ve still made 400hp with a cam 1 step smaller than the 231/237 ….
....or if that's what you have. Or if that's what you WANT.
33IMP
Well-Known Member
My opinion only.
"Streetable power", with a small cam?
Build a 9.5 to 1 motor, the BIGGEST motor you can afford to build, and put the best cylinder heads you can afford on top of it. Done.
Or, stuff a Cummins with 75lb of boost in your b-body .
Edit: I was basically thinking of big blocks, didn't notice this was in the small block forum. I stand by the first paragraph anyway.
"Streetable power", with a small cam?
Build a 9.5 to 1 motor, the BIGGEST motor you can afford to build, and put the best cylinder heads you can afford on top of it. Done.
Or, stuff a Cummins with 75lb of boost in your b-body .
Edit: I was basically thinking of big blocks, didn't notice this was in the small block forum. I stand by the first paragraph anyway.
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Dartnut
Don't hate me because i'm beautiful
I want to read about what happens if you install a Coyote engine in a Road Runner...
I don't see why not, 7 degrees less shouldn't kill over 25 hp, figure it be close enough anyways, now days we would probably be using edelbrocks or it's clones.
A 375 hp 318 won't be as streetable as a stock 375 hp 440. lol
33IMP
Well-Known Member
So I should take the 327 out of my 33 Imperial?
Kidding. The straight eight with overbore is 327. 135hp, wow!
Probably not but you still could make a fairly streetable 375 hp 318, in the 2nd video they make 375 hp with 5.0L and it's stock cam I imagine it would be fairly streetable even with only having 302 cid.
stop light to stop light streetable, my money is on the stock 375 hp 440 by a mile. lol
oh that's right we're not racing, the 302 and 318 won't be running steep gears and a high stall convertor.
There I go comparing apples to oranges again. lol
Ant
Well-Known Member
The max streetable power is subjective. You can have a little 4 banger that makes 300 or so horsepower but runs like poop unless it's it's racing, cough! ricer guys, cough!. People are daily driving 500HP and up cars with just a tune and other upgrades, so it depends on the setup.(some of those four ringed VW's are stupid quick, but I'd still won't own them.) Some turbo charged engines can be pretty tame under light driving, but when you punch it and let the turbo spool up a massive increase of power can knock the tires off from a 35mph roll. So my answer is, reject everyone's logic and substitute my own
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