Engine options.

[KansasTwister]

Well, im getting really close to prepping the motor on my 86, just need to borrow a cherry picker from my neighbor. That motor is the bone stock 8.5:1 350 from a 75 k5, might have a forged crank seeeing as it was the heavier duty 350 with good rods, never tore one down though, but im sure my 77 350 had a forged when i looked at the parting line. Its used, might have used some oil, but it ran.

Motor he has is a 350 4 bolt, 76cc 882 heads with z28 springs and screw in studs, its bored 30 with no ring wear, has speedpro hypertech flat tops and resized rods, edelbrock preformer intake and edelbrock carb plus two sets of valve covers, edelbrock cam that specs the same i think as a summit 1102 (.420/.440). Also a new m55 oil pimp and racing pan.

Hes needing money and wants 400 but previous owner ran it wihtout oil and wiped the crank bad i guess, i need to check the block to make sure its good, motors was 6 months old before it got ran low on oil. Think its a good deal? I dont really have a need or want for the carb, so may see if i can get it for 300 without it, but gonna look the ring wear over real closely and make sure the main bearing caps and block wasnt messed up when ran low on oil (ideas of what to look for?)

Reason it appeals to me is i wanted to bump it up to 9:1 anyway, and with a clean bore, if the mains are good, i can get a crank and run it as long as everything else is good, throw some new gaskets and rings and call it good. Thoughts, ideas, opinions?

 

[76zimmer]

YOu got a lot of engines going here, not sure which is which, but...
If a motor is ran low on oil (enough to "wipe the crank") as you call it, I would closely check every part in it that is replaceable. No oil, and engines don't mix. How do you know this engine has "no ring wear"?

Only way to know if an engine is a 4bolt for sure is take the pan off. Many 350's I've taken apart that have had the 8" dampner on it are 4bolts, but someone could change that part too.

I would have the rotating assy. magged, and measured professionally.

Bearings that are low on oil, will have heat marks on the back side of them, and possibly many grooves in them, with the crank journal being almost a mirror of the bearing.

 

[KansasTwister]

Motor is in pieces taken apart by him. Apparently the crank is pretty bad. Heads seem decent but they are 76cc smoggers. Intake is decent but carb is a 1406 nothing to bark home about. Cam isnt that special either, ive got an 1103 ready to go. Flat top hypers and resized rods would be nice but id assume it needs rings, i dont think the piston would go back from lack of oil but she may have got warm before she went out. The block itself may be too far gone to save as well i fear, if the crank went then i think either the mains or the rod would have spun one as well. I may just pass and use the motor i already have, its got some nice pieces but it sounds like alot of work for something thats probably junked. If it were 200 id really consider it but ive got quite a few running stock 75-78 350 non-emisions laying around for my needs, in and out of vehicles.

 

[USSkoval]

Sounds like a toasted and abused mild 350 with ho-hum 882 heads. $400 is way too much, IMHO, even with the Edelbrock carb/manifold.