TheSkrich Posted January 20, 2005 Share Posted January 20, 2005 Ok first of all is 448 ci possible from a smallblock¿ 2nd hows this deal sound¿ I was sitting over at my friend Tim's and we was talking about the datsun as always. He was asking me how the fabrication was coming along. and i said i still needed to find a good sbc, it just so happened that his wifes brother suddenly decided he was a ford man and was getting rid of everything chevy and offered the motor and whatever else chevy he has laying around the shop to Tim for $900, The information i was given is: 5140 Steel crank comp cam .572/610 lift 12.4:1 Iron eagle rotating assembly: 6 in rods Heads: 2.05 1.68 bowtie 64cc; 220cc angle plug Port & Polish triple valve spring full roller rocker; guide plated line bored/ deck shaved blue printed Electric waterpump Carb is a holley worked over to 930 Every cylinder has been sleeved Motor has never been ran Any idea on what kinda power something like that can make reliably? Quote Link to comment Share on other sites More sharing options...
dr_hunt Posted January 20, 2005 Share Posted January 20, 2005 Depending on the cubic inch, I'd say it'll be about 600HP at the crank. Those heads don't flow that great, but are well matched to the cam, compression is about right, sounds like a little too much money, I'd bet that some of the forum guys would probably only give you about $500 for a set up like that, tops.. I'd offer about $550 just to top them, and of course, I'm just doing that from the goodness of my larcenous soul. Ha-ha! If you or your buddy don't buy that, then go beat your heads against the wall for 30 minutes or so and see if you can clear the cobwebs out. Quote Link to comment Share on other sites More sharing options...
TheSkrich Posted January 20, 2005 Author Share Posted January 20, 2005 dr_hunt thanks for the reply, i left out some parts in my haste to post. its a complete engine ready to run minus starter and dizzy, also has edelbrock performer intake, and 5800 dollars worth of receipts for motor work and parts Quote Link to comment Share on other sites More sharing options...
A. G. Olphart Posted January 20, 2005 Share Posted January 20, 2005 Strange how a religious conversion can cause a person to devalue all the things he once held dear. Quote Link to comment Share on other sites More sharing options...
Tim240z Posted January 20, 2005 Share Posted January 20, 2005 Personally I would upgrade the crank to 4340 Quote Link to comment Share on other sites More sharing options...
TheSkrich Posted January 20, 2005 Author Share Posted January 20, 2005 i was going to but i think it will be allright. another thing i forgot. the crank has been knife edged and balanced. i was told there was 13 hours that went into ballancing it. also i would imagine it to be a custom crank to get 448 ci out of a 400 sb Quote Link to comment Share on other sites More sharing options...
dr_hunt Posted January 20, 2005 Share Posted January 20, 2005 If you were going to drag race it constantly or road race it, I'd say yeah, change the crank, but for a street driven monster hero like you'd have with that in your z, it'll probably be ok IMHO. I think the performer has to go though, the cam, heads, and cubic inch size are all calling for something that flows a little more like a victor Jr series, or team g or some other open plenum race type manifold. I think some of the rest of the guys will chime in on that one either with me or with a better idea. Several of them have some really in depth thoughts on parts relativity to one another and to overall use, TQ and HP. Pretty interesting stuff, kind of gives you an overall description of the engine's use, but I can't recall exactly who posted that info. It kind of matches all the parts and the engine falls into categories, like street, street/strip, race, etc. Somebody ought to compile an archive or book that holds the best of the best information. You'd be amazed what all these guys know and readily share or have shared in the past, I know I'm amazed and pleased. Quote Link to comment Share on other sites More sharing options...
jbk240z Posted January 20, 2005 Share Posted January 20, 2005 Yeah, I agree with dr hunt, the performer has to go. Like he says get a victor jr, team g, or I would try the new worldproducts motown manifold for the sbc, looks pretty good to me. Check it out at this link: http://www.worldcastings.com It does sound like a great deal to me, I would buy it if you guys don't, if I knew where it was that is............lol. Quote Link to comment Share on other sites More sharing options...
TheSkrich Posted January 20, 2005 Author Share Posted January 20, 2005 well thanks for the info fellas. as soon as i get the motor {probably a week or so} i'll take some pics of it and figure out all the specifics ie. cam duration bore stroke blah blah and maybe someone will feel up to doing a desktop dyno for me. ill throw in some pics of the tires too. 325-50-15 et street radials mounted on 12" weld pro stars Well that is if im able to figure out how to post them. dont seem to hard. Quote Link to comment Share on other sites More sharing options...
jap tin Posted January 22, 2005 Share Posted January 22, 2005 "Ok first of all is 448 ci possible from a smallblock¿" 4.155 bore with a 4.125 stroke will give you a 447.45 so yea its possible and has been done before. With a stock block your going to have a lot of grinding. With that much stroke you are better off to go to a aftermarket block with raised cam and spread pan rails. But for 900 bucks, what can you say. You can always sell off the parts and make a buck or two. Once you run it the price drops like a rock from new parts to once run parts. I would like to see something with that much stroke with some -12 Brodix heads. Quote Link to comment Share on other sites More sharing options...
TheSkrich Posted January 22, 2005 Author Share Posted January 22, 2005 Allright the motors mine. I talked to the guy and he said I can pick it up monday, Pictures will follow Thanks jap tin. I had always heard that 437 was the max on a sbc so when he told me 448 i was kinda skeptical if he had done his math right. He told me to get that kinda cubes he had to have the crank lathed down and notches cut in the cylinder walls for rod clearance, Quote Link to comment Share on other sites More sharing options...
TheSkrich Posted February 17, 2005 Author Share Posted February 17, 2005 Too good to be true Got it home and popped the heads off and found it had a chipped piston. I turned the motor over to get a look at the cylinder wall to see if there was any damage and found a 1" strip of the cylinder wall shoved out. My guess is he didnt run high enough octane, detonated and busted the piston, then the chunk from the piston raised all kinds of hell. http://www.picturetrail.com/gallery/view?username=theskrich&x=0&y=0 And yes I am getting my money back Quote Link to comment Share on other sites More sharing options...
Guest rick458 Posted February 17, 2005 Share Posted February 17, 2005 Let Me Guess He "Forgot" he blew it up Quote Link to comment Share on other sites More sharing options...
TheSkrich Posted February 17, 2005 Author Share Posted February 17, 2005 "The only reason I took it out was because the car was sold" and it was making large amounts of noise and on its way to tieng up Quote Link to comment Share on other sites More sharing options...
dr_hunt Posted February 17, 2005 Share Posted February 17, 2005 Yup, when a deal seems too good to be true, it usually is. I'm sure the reason he was dumping it was for that very reason. Looking at the pic's it's obvious it detonated and made a good motor go bad. Quote Link to comment Share on other sites More sharing options...
Guest Figlio_del_Diavolo Posted February 17, 2005 Share Posted February 17, 2005 Shafiroff offers a 472ci small block. It is a sick engine. I have plans of putting something similar in a 240 someday when I have the time/money/garage space/etc. Here is the link to the engine: http://www.shafiroff.com/472_675_engine.asp Quote Link to comment Share on other sites More sharing options...
jt1 Posted February 17, 2005 Share Posted February 17, 2005 What kind of crank is that? Are you sure it's even a 4"+ stroke? It's hard to tell for sure in the pics, but that looks a lot like a cast crank to me. Even though it's not what he said, there's still a lot of parts there. I would probably try to negotiate the price down and start a fresh build or part it out. John Quote Link to comment Share on other sites More sharing options...
Guest Magnum Rockwilder Posted February 18, 2005 Share Posted February 18, 2005 measure the bore and stroke Quote Link to comment Share on other sites More sharing options...
dr_hunt Posted February 18, 2005 Share Posted February 18, 2005 Looking at the pictures and there is one good picture of the crank that shows casting marks and numbers. That is a cast crank, not a forged unit which means it's not a 448 but at most a 417 if it was offset ground. If it's cast, it's pretty much junk for much HP use over 400HP. Too bad. Quote Link to comment Share on other sites More sharing options...
TheSkrich Posted February 18, 2005 Author Share Posted February 18, 2005 I was hoping some of you fellas would recognize what the crank and rods are cuz I dont know. The crank has the marking E58 on it. I'll check the bore and stroke tomorow, I just got out of the shower and I'm to clean and purty to go out in the shop. LOL. Quote Link to comment Share on other sites More sharing options...
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