Who Is Running A Big Block In Their SPF

[fordracing65]

Originally Posted by Joe's Garage

Where's the insult? What I posted was factual, all Brent did paraphrase what I said and then add his own spin as if to "correct".

I guess I need to dumb it down a little. BBs as a family have more low end grunt than SBs. If you disagree speak up. SBs as a family make their power higher up in the RPM range than BBs. If you disagree speak up.

You can build any motor to make power where you want but if you look at the population of both, then what you see is what has been stated - the dyno charts don't lie.

Al G, if you didn't have something to b!tch about you wouldn't have much to say at all. A couple of PMs on that other thread early on gave me a heads-up, they were right.

Wrong again. Like Blykins said. It depends on the cam and heads. He can make a small block with more low end grunt than a big block and he can make a big block with more power up top that revs to the moon. Most of the time it is the opposite like you state. But not always the case. So it's not always the case. I'm not taking sides just stating facts.

[jacobsed]

You guys are silly.

It would be kind of dumb to build them that way. Lighter engines have lighter rotating mass which is ideal for high rpm work. Big blocks don't need to rev to the moon....at all.....ever.

Bad ass street cruisers are big blocks and bad ass road course cars are small blocks.

(flame suite on )

Originally Posted by fordracing65

Wrong again. Like Blykins said. It depends on the cam and heads. He can make a small block with more low end grunt than a big block and he can make a big block with more power up top that revs to the moon. Most of the time it is the opposite like you state. But not always the case. So it's not always the case. I'm not taking sides just stating facts.

[blykins]

Joe,

You got wadded up because someone was comparing an FE to a 302. Then you said we should compare apples to apples, a 427 SBF compared to a 427FE. Then you said that you should google dyno charts for "427 variants" and stated that big blocks brought the power in sooner and petered out sooner.

I responded based on that statement, because I have built many of each. The engine itself doesn't know it's a big block or a small block. It knows how many cubes it has and how big the heads and cam are.

If you meant something differently, then by all means, clear it up.

jacobsed, that's really another wives' tale.....

A longer stroke doesn't make for a lazier engine.....otherwise the 4.750" and 5" stroke Pro Stock Mountain Motor guys wouldn't be able to pull to 8000 rpm.

I have built 408 Windsors that were done at 5000 rpm for towing purposes. I have built 465 and 511 inch FE's that didn't get started until 5000 rpm and would pull to 7500 without issue. If you don't believe me, Google CSX3170 autocrossing. That's a 498 inch FE that makes peak horsepower at 7600......

Speaking in generalities is what can cause problems. As I stated above, engines don't know whether or not they are big blocks or small blocks. The block size itself doesn't mean anything....it's all a combination of bore, stroke, cylinder head, and camshaft.

[Joe's Garage]

Originally Posted by jacobsed

... Lighter engines have lighter rotating mass which is ideal for high rpm work. Big blocks don't need to rev to the moon....at all.....ever.

Bad ass street cruisers are big blocks and bad ass road course cars are small blocks ...

Yep, couldn't agree with you more.

Maybe Brent needs to hear it from a different source

http://www.strokerengine.com/StrokedEngines.html

[blykins]

Maybe Brent just needs to go back to building engines and letting the internet quarterbacks feel like they know what they're talking about.

If you want to see dyno sheets, I have more than I can post....would you believe them? I don't have to Google them.