I've built tons of big stroke small and big blocks and they don't seem to ever have problems. With the same parts and in fact any parts an engine with a 4.500 stroke won't turn or make it's power way up high anyway without a huge gogantic cam and huge heads. People are wanting to do these ultra large super big engines since they make the power so much lower in rpm and are in fact lower rather than higher stressed because of the the large drops in rpm required to make the same power. Some people understand this and some don't.

Well except for a lot more tire wear.

 

You can with no problems whatsoever. The top end will limit them to their realistic peak engine speed anyway. Most shortblocks at this point have redlines way past where the heads and cam will reall work to. I haven't seen a shortblock "failure" on any stroker stuff really ever built by any reputable company due to "too much stroke" or anything like that. I've seen and work on tons of stock stroke stuff though that has spun bearings etc. Again it's not because the stroke is too small either it's because of other things and there are simply so many more stock stroke engines and they are usually stock with weaker parts and incorrect clearances for what the people are doing usually.

 

I know what you mean Phil, but the motor he is talking about actually used steel rods, since it is intended for teh street, hence teh lowly 11:1 and 89 Octane.

 

Well, he also has a cylinder head that flows over 600CFM @ 1.10" of lift on the intake and over 400 CFM @ 1.10" of lift onteh exhaust, AND some ungodly camshaft with over 300 degrees of duration, and that is AT .050 and NOT advertised with 1.10" of lift. As Erik said, as long as the head can supply the air needed for a big cube motor, as well as the supporting camshaft, you CAN twist a big motor sky high!


Edit: I guess I was typing when you made your post Erik, or at least I did not see it...and Bruce and teh guys should be calling you this coming week

 

You guys need to get your **** straight before you try to prove me wrong. Read it and weep...

Bore spacing-5.000in.
Bore- 4.751in.
Stroke- 5.7in.
Rod length-7.875in. NOT ALUMINUM
Pistons-11.0:1 BME Gas Ported
cam-600lift intake/580 exhaust- 284/314 @ 0.050
96lb/hr injectors
802 ci.
1417hp @ 7100rpm
1140lbft @ 5800rpm

Tell me this couldn't be drivn on the street, the whole point ws to make a bad street/strip motor.

 

Oh yeah, the one down side to this monster, it's going to run around 80 grand.

 

Hell yes you could drive that on the street! I agree I'd like one as well! A little pricy though but it will haul major *** like no other engine that's for damn sure!

 

Just the motor is 80K What the hell?

 

the 1150HP 762ci crate motor is offers is 60K, those kind of cubes aren't cheap in any respect. Another thing is that he recommends around 3000 hours of operating time between freshening.

 

Wouldn't it be crazy to have that thing in something like the Big Red Camaro. Sorry to hi-jack this thread. Ever since I got my new issue of Hot Rod yesterday I've been in a daze. You might want to transaxle it just to help even out the weight distribution. What, with a M6 that would be good for 1100rwhp N/A. You'd probably go through alot of tranny's, but if you can afford that motor a $6k tranny ain't ****. Big Red would fly, Literally!!!

 

My god, why such a difference between pricing like a Bischoff 632ci that makes 1,200 hp, pump gas, for $24,000, complete engine.
http://www.besracing.com/632-special-crate-engines.html

And that 762ci that makes less power and torque.

And Bischoff engines are known to be some of the best built engines.

 

I don't think that's a pump gas engine, he has a "street" 632 with not many specs listed.

 

I thought it was 93 pump gas. Fast Times Motorworks 598ci, 1,000 hp engine is 91 octane pump gas.

Either way though, that 60K or 80K engine must be race gas too then. So still, why such a big difference in price?

 

Well, Sonny's powers pretty much most of the IHRA Pro Stockers. The only differnce between a full out race motor and one of those 802 street ones is the Rods and Cp. That and the heads, they're like 14k just for a set of semihemispherical 5.0 bore spacing heads. Kind of like some Arias ****... The thing is you need a tube chassis for those 700+ inch motors.

 

Boy this how rumors get started good god. The motor I listed specs on like flow numbers and such, teh Sonny Leonard motor is a 89 Octane motor with steel rods, and 11:1 and was built FOR THE STREET, it is going in a ****** coupe, again, destined FOR THE STREET The price tag is so high because among other things, the block and heads. Everything on a 800+ CI motor, is basically one off. There are NO shelf parts for these motors. The freakn intake VALVES are almost 2 1/2" in diameter!!!! Those are Sonny Leonard Hemi heads that go for @ $15K. The Throttle bodies are 2 1/2" in dia, and there are EIGHT of them. It uses 96 Lb hr injectors, and this is a NA motor.

 

It is run on 89 octane, 11:1 and see my above post and you will know why.

 

And camshaft...cam, compression, rods are the big differences inthe motors

 

doesn't the FTM motor use a procharger though? I can't remember exactly, I do remember somebody posting up that a Buddy of theirs had BES build a pump gas 621 that made like 1100 FWHP N/A, and still had good street manners. It also costed around 34K iirc.

 

I spoke with FTM and BES about their BBC. I know the BES 1200 hp is a pump gas engine, N/A and a street engine. Now that you mention it, the FTM 1,000 hp 598 did have a Procharger @ 6 psi on it. Complete engine on pump gas was $28,000 installed in an F-Body 4th Gen. FTM said they can do some upgrades and it'll make 1,400 hp for like $4,000 more.

The price on his website for his (BES) 632ci 1,200 hp N/A engine is $24,000. Thats a complete engine ready to install.

 

No rumors, just asking questions on their differences. When a price for basically the same hp/tq BBC is almost 3 times the price of another equal performer, both engines coming from top engine builders, I'm curious as to why.

Being one off parts for 800+ci engines answers that question.