+100 HP? That's a lot. If that's all coming from Headflow then the heads would really have to be a whole lot better. I mean, we're talking better than 50 cfm right?
Heck you can pick up 70cfm in a small block Edelbrock head.
+100 HP? That's a lot. If that's all coming from Headflow then the heads would really have to be a whole lot better. I mean, we're talking better than 50 cfm right?
Nuthin. How bout this? How bout limit the stroke to 4" for the small block and 3.75 for the big block? That way, we can use the factory cranks in the low or raised deck. Isn't that a little more fair? That does limit the big block to factory only stroke, where the small block gets whatever you want.What got your panties in a wad? Sheesh.
One sided would be a 512 up against a 408. That would be the most retarded question ever.
I see both sides of that argument though. The guy with the 512 runnin 10.70s, while he can go a LOT quicker, he's running much less stress on everything.It’s actually pathetic to watch at times. Guys are shocked I have a small block and often say wholly crap so n so has a 512 cubic inch engine and runs 10.70’s. A few guys mentioned about the best head wins and they are totally wrong. The best “combination” usually wins. And notice I said usually.
The spark plugs stick up on a big block Chevy. lolChanging the spark plugs alone, steers me to the SB.
John, you've been going nines or better for forty years. Think you might have an advantage over the guy that put his pump gas 500 together for the first time last week, or month, or year? Lol.
... and I can buy a crate big block that'll put my junk in the eights. Too bad it's a chevy. And I have NO desire to go that fast.
Think he's trying to compare cid in different b/s/r ratios so 408 vs 400, he did give a 413 as an option 3.75 crank and still a better size.Nuthin. How bout this? How bout limit the stroke to 4" for the small block and 3.75 for the big block? That way, we can use the factory cranks in the low or raised deck. Isn't that a little more fair? That does limit the big block to factory only stroke, where the small block gets whatever you want.
Yep, but the 413 has a tiny bore, and more weight than a low deck. For relatively the same displacement, the 400 is a much better choice.Think he's trying to compare cid in different b/s/r ratios so 408 vs 400, he did give a 413 as an option 3.75 crank and still a better size.
Probably not across the board. That's a big cut.Yep, but the 413 has a tiny bore, and more weight than a low deck. For relatively the same displacement, the 400 is a much better choice.
Now, if you have a 413 block you can bore .165 over.....?
413, better low end torque, sure, but rpm makes better torque and power on the big end.
My God, look at how much more head the big blocks have. If only Chrysler had used a splayed valve head on the big block. If only.I keep coming back in my head to the engine masters test comparing a 500hp small chevy to a 500hp big chevy.
Big chevy wins hands down, easily.
They do. It's called a Hemi, LOL.My God, look at how much more head the big blocks have. If only Chrysler had used a splayed valve head on the big block. If only.
Nuthin. How bout this? How bout limit the stroke to 4" for the small block and 3.75 for the big block? That way, we can use the factory cranks in the low or raised deck. Isn't that a little more fair? That does limit the big block to factory only stroke, where the small block gets whatever you want.
Well, I was assuming 4" was tha max, anything under that was allowed, but this ain't my game and my rules.Why handicap the SB with a 4 inch arm? I‘d build a 3.79 stroke (or maybe even a 3.65 stroke because I think they used to make that stroke length) and turn the small block 7500 rpm
With typical ootb type heads getting what 450-575 to almost 600 hp out of a 408, 525-700+ hp out of bbm mopars. Stealth flow like 273 @ .600" thats there bottom of the line head tf 240 326 @ .600", tf 270 343 @ .600" etc.. vs basically sbm tf 305 @ .600".+100 HP? That's a lot. If that's all coming from Headflow then the heads would really have to be a whole lot better. I mean, we're talking better than 50 cfm right?
Also, I've never seen a THING wrong with the 3.31" arm, either.Why handicap the SB with a 4 inch arm? I‘d build a 3.79 stroke (or maybe even a 3.65 stroke because I think they used to make that stroke length) and turn the small block 7500 rpm
At least they used the hemi headMy God, look at how much more head the big blocks have. If only Chrysler had used a splayed valve head on the big block. If only.
......and still have more stroke, and less cubes than a 400bb. Why do you think the small block with a 3.79 stroke can out rev a 400 with a 3.38 stroke, and a bigger bore for more valve area and head flow?Why handicap the SB with a 4 inch arm? I‘d build a 3.79 stroke (or maybe even a 3.65 stroke because I think they used to make that stroke length) and turn the small block 7500 rpm
Well yeah, but compared to the Chevy big block, one could argue the Hemi was almost experimental. Every single Chevy big block got the same style head. Even on the W series engines, the 348 and 409.At least they used the hemi head
Back in the game! lolI see both sides of that argument though. The guy with the 512 runnin 10.70s, while he can go a LOT quicker, he's running much less stress on everything.
The average sbm guy should generally be up against ootb bbm trick flow 240 & 270, 325 & 350 cfm.Heck you can pick up 70cfm in a small block Edelbrock head.
Plus they didn't make enough for the average guy to have them.Well yeah, but compared to the Chevy big block, one could argue the Hemi was almost experimental. Every single Chevy big block got the same style head. Even on the W series engines, the 348 and 409.