If you had Studebaker stock before the merge, you still had Studebaker stock after the merge. And if you still have it you are doing alright. Stude didn't fold, I am told, they just went out of the automobile business. So to me it sounds like Stude absorbed Packard.
My vote is for the 534" MEL big truck engine, but it is a great big SOB!! Probably 1,100 pounds worth here. Otherwise the later 500" Cad that can go to 550"s easy and then some more! But it's too new. And, imho, GMC has some great big, no more than V-6 bangers here that get really big.. pdq67
You may be right except it has been done, and with a Cammer no less. Check out the build thread. I will grant you that he cheated and moved out to a 4.7" Bore spacing. I know it is alot easier to do with a 460 block, but the OP didn't want the 385 series to be considered. http://www.network54.com/Forum/74182/thread/1228703224/585+SOHC+on+the+dyno
GMC did also have a 637 ci V8 that was in the same family as the big 12 and V-6's. I am not sure if it was pre '64 though.
Interesting build but sure not inexpensive, even for a big buck build. Changing the BS is big bucks....wonder how he handled the rod spacing and counter weight spacing.
The 413 RB Mopar block could be worked to 503 ci, IIRC. Normal 413 parts (especially pistons!) are expensive enough, so this animal these days would be a bag of $$$ to build. I'll have to see if I can dig out the magazine article that described this, I remember reading about it years ago.
And combustion chamber spacing? And valve guide spacing? And cam lobe spacing? Sounds like he just built a new engine that looks a lot like a Cammer.
Friend of mine here in town has a 59 Pontiac 389 that he has bored & stroked to 577CI. Added 2" to the deck & a 4.8" stroke.
Here is a thread that better explains Jay Brown's 585 ci Cammer. http://www.network54.com/Forum/74182/thread/1250519404/585"+SOHC+on+the+dyno I would be interested to know how much cash he has in this motor. Definetly not cheap, but a very unique build none the less.
What about BB mopar??? Came out in 1958. 426 was the largest you could get before 64. You could dress up a stroked 440 easy over 500 ci.
WOW! Not cheap may well be the understatement of the day. Interesting engine. But seems to have been built with no Ford parts. So I'm going to stick with my description of it looking like an SOHC. Kind of like those Falconer offshore engines that sort of look like a BBC but are actually longer, taller and wider and lots bigger inside. I am still thinking the 805 Roline was the biggest OHV V8 I saw mounted in a road going vehicle in the '50s. Never saw one in a car. Way heavy but maybe not worse than the GM V12
Military M123 10 tons and some 50's road trucks used a LeRoi 844 cube gas V-8.I believe is pretty much the same as the Roline. A huge engine is just that,a huge heavy slow reving engine.Using "high" gears to get road speed will difficult to use in traffic unless you have a very low first gear. GMC V-12's found a better use as agricultural water pumping powerplants. Big block Chevy misses this cutoff by a year for actual production engines..It's a no brainer to get 572 cubes from a BBC 454
No offense, but it would be a bit of a brainer cant be done.... you can use a late 80's truck 427 tall deck block they are siamese bore and 10.2 deck, but that wet 9.8 deck production 454 block wont work. The late production truck block is the only production block you can get 572, or buy a bowtie or one of the many other aftermarket blocks.
Yes,truck blocks ,I forgot that part But it's still easy cause the parts easily available,GM sells a crate 572,you might say that 's a production engine.But...too new.
A 426 RB bored 0.060" over and 5/8" stroker would be 4.312" bore x 4.375" stroke which gives 511 cubic inches. Piper106
Anybody have any numbers on how big the 430 MEL could be bored and how much stroke it can hold??? Piper106
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