ok I am somewhat of a novice mechanic and I am wanting to hone the cylinders in my 347 small block can anyone give me some tips on honing is this something I can do myself or should I have a professional do it.
It can be done at home but one would need more details. Is this a 347 that you are REbuilding-meaning it is a teardown of a 347 stroker, or did it just came from being bored and notched for clearance on the crank to make 347 out of a 302? If it is just being rebuilt and has not been to a machine shop you may need to check/cut/remove a ring grove. Seth
basically I bought this engine and it was seized i let some marvells oil soak in the cylinders and finally managed to break it loose now i can see there is some rust on the cylinders walls and i want to clean it up.
It sounds to me that since you are a "novice" taking it to a machine shop would be your best bet. Honing cylinder walls isn't hard. Assembling a 347 stroker motor is moderatley challenging. Is this motor already a 347 that was siezed up or are you planning on just slapping in a 347 kit. TO be honest it just doesn't slap in. You need to clearance stuff in order for it to fit properly. If it seized up and you think you are just gonna hone it and it's all better,not gonna work either. Why not tell us the whole story and maybe we can get you the help you need.
He's right. It could have seized due to rings/cylinder/heat or bearings. Two separate things. Either way, seizing requires lots of checking. This is not a case where you are going to hone, rering and add new bearings. Find out what you can about what the engine was doing when it locked up-if anything and take it to a machinist to be mic'd (checked for measurements). Some parts may also need to be magnafluxed-checked for cracks. Seizing eithr causes or is a result of lots of heat. Something could be way off. Your crank could be bad, you could need to align bore the crank bearing seats-not always good, the crank could need turning, you could have a bad cylinder or a cracked cylinder head. Seth
ok the whole story is i bought a maverick with this engine in it the owner told me that the previos owner before him installed a 347 kit into the 302 when i bought the car the transmission was in the trunk so i got it towed back to my place installed the transmission and all that jazz and went to turn it over but i got nothing accept click click click the engine wouldnt budge so I opened up the oil pan loosened the main caps and rod caps thinking maybe a bearing problem but that did nothing to help the situation finally just guessing there was some moisture in the cylinders i decided on putting some marvells in the cylinders let it soak for a week and with a lot of coaxing she started spinningand now spins easily but i am woried about the rust left in the cyliners wich I can see when i shine a light into the spark plug holes maybe this isnt even a situation in wich i need to hone because it is just a surface rust and might simply whear off and not create a problem but i was thinking that if honing wasnt that difficult i would give it a try. well thats the rundown if I left anything out let me know?
Take it apart. Period. You don't really know if it's even a 347 or not. Yes, you got it to turn over.....by hand. You also don't know what damage has been done to the rings due to being seized. Pretty sure the moly is gone off the face of the rings. Just take it apart and then have a competent machinist gauge the level of damage. It might just need a good hone and a set of rings & bearings. Or it might need boring. Then again.....it might be a plain 302 also and won't that make you happy.
either way 302-347 i got a good deal on the car but hopefully its 347 how much will a hone bearing and rings run me approx.any idea.
J_ If you can swing it (or hold out until the descretionary funds are available), get the (Clevite) bearings, rings, new oil pump, water pump, timing chain/gears, and have the heads reworked (valve job). You won't regret it. It could save you another tear-down in a matter of months. See summitracing.com, autozone.com, (etc) for general price range on parts. Ask around your town about the cost of having a valve job done and the heads resurfaced. Gluck
Ballpark numbers...... Hone w/CK-10: $100 File to fit rings: $65-80 set Bearings: Mains-$25; Rods-$25; Cam-$15 Oil Pump: Mellings $45 Oil Pump Pickup: $25 Timing Chain/Gears: $50-90 (depending on company and quality) Valve Job: Three angle-$125 Mill heads (clean up cut - .005"): $75 Rick makes a great point. No sense in taking it apart without fixing everything. Don't be cheap about it either. I've got a sign in my shop just for customers who worry about money. "How come there's never enough money to do it right but always enough money to do it over?" Good Luck!
