Someone posted a you tube video of a stovebolt engine buildup a few days ago- - - -one of those where it appears the only talent the sponsor of the job had was the ability to write a huge check! Twin turbos on a 261, with fuel injection, distributorless ignition, and a Wayne-style 12 port aluminum cylinder head, H beam connecting rods, forged pistons, and a whole bunch of other stuff that the average stovebolter will never see, let alone use on his own engine job! Then they didn't even get around to doing a dyno run!
They did mention a somewhat practical modification, however- - - -grinding the crankshaft main bearing journals down to the same size on all four, and using big block Chevy V8 main bearings. That procedure requires some pretty creative machining on the block, but it makes a lot of sense- - - -particularly since original equipment main bearings are getting scarce, and most stovebolt crankshafts have been reground a few times already. As long as the crank and the bearings are the right size, and they're assembled properly, they really don't care whether or not the bearings are the original diameter, or if they're all one size instead of four different ones. Main bearings for a 427 or a 454 won't have any problem handling the power a stovebolt engine cranks out- - - -even a modified one, and the next time the engine needs a rebuild, the parts won't be scarce or expensive. It's also possible to use various "stock" parts from different manufacturers to build a modernized tractor engine- - - -there's no need to shoot the moon on NASCAR style gizmos! Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
Moderator for Tons o' Fun , Co-Moderator Driveline Forum
Jerry, I watched that video as well. The method they used on the main thrust bearing was a bit interesting. Anyway, the video I watched "Incredible Twin Turbo Chevrolet Straight Six is a One-of-a-Kind Creation! It was on "The Horsepower Monster" channel. They did the dyno run at around 22.85 min into the video. 575 Ft Lbs torque at 3500 rpm . Peak horsepower 525/ 530 ft lbs torque at 5200 rpm. I too kinda thought, why? But I suppose that if it can be done and you can afford to do it?
Ron - - Dusty53 "you can't dance with the Devil and then wonder why you're still in Hell" " They will forget what you've said, and they will forget what you have done but they will never forget the way you made them feel"
The big problem seems to be finding a machinist who is capable of doing the modifications involved, or at least one who's willing to do so. Back in the dark ages before all the fancy go fast parts were being cranked out by the thousands on CNC equipment, we used original equipment parts for our hotrodding, at a fraction of the cost. One of the 261 engines I've got in the development stages at the moment uses pistons for a 231 cubic inch Buick V6, connecting rods and bearings for a Nissan 4 cylinder, and roller rocker arms for a big block Chevy V8. The displacement will be close to 300 cubic inches. It will use a Rochester 2G carburetor for a 283 V8 on a modified original intake manifold, and an old school split exhaust manifold. From the outside, the only visible mods will be the carb and dual exhausts. The original-appearing distributor housing will have GM HEI internal parts and a high voltage coil that resembles an OEM item. Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
Federal Mogul 4400M- - - - -available in .040" undersize. Fits everything but the #1 main journal. Three little words- - - -"submerged arc welding". Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
I guess I'm in the "waste your money" club but I really don't care. I have no wife or kids to leave my money to. My 1000 HP 292 (308) will total more than my first house and my truck will probably be in the 6 figures when done and I do most of my own work. It might just blow up. I know of 3 guys running 1000 HP 292's (2 turbo's and 1 blower) and they seem to have a lot of fun. If I don't live long enough to finish it so what I'm having fun building it. I hope to run in drag and drive next year with my 53 3100. JMHO.
I guess I'm in the "waste your money" club but I really don't care. I have no wife or kids to leave my money to. My 1000 HP 292 (308) will total more than my first house and my truck will probably be in the 6 figures when done and I do most of my own work. It might just blow up. I know of 3 guys running 1000 HP 292's (2 turbo's and 1 blower) and they seem to have a lot of fun. If I don't live long enough to finish it so what I'm having fun building it. I hope to run in drag and drive next year with my 53 3100. JMHO.
As the wisest man I have ever known, a second generation dairy farmer would always say, "We need guys like him." In your case, we need guys like you so that we don't have to do what you do. If we did, we'd never hear the end of it from our wives. Now, we can use you as an example of, "Well honey, at least I ain't doing what mick53 is doing." And for that, I thank you.
Carl, there's an old adage that goes "nobody is totally useless- - - -he can always be a bad example!" LOL! Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
I guess I'm in the "waste your money" club but I really don't care. I have no wife or kids to leave my money to. My 1000 HP 292 (308) will total more than my first house and my truck will probably be in the 6 figures when done and I do most of my own work. It might just blow up. I know of 3 guys running 1000 HP 292's (2 turbo's and 1 blower) and they seem to have a lot of fun. If I don't live long enough to finish it so what I'm having fun building it. I hope to run in drag and drive next year with my 53 3100. JMHO.
Tech S200 = 4 cylinder??
Is Electromotive still in business? Their web site seems to say otherwise.
BTW, I believe the guy who built the six I'm playing with, took an AMC distributor and whittled it down to a timing trigger. It's a cute little nubby thing.
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
