Hello guys I will be taking my engine a 350 small block chevy out either this coming fall or early spring but I have a few questions on some possible things I might have to do but won't know till tear down.
I have oil on all my spark plug threads but the ends themselves are clean with just normal combustion look on them with no fuel or oil buildup so looking like its the cylinder heads that either too much guide wear or bad seals but this engine has had a few years running too cold driving it to work with it only running around 150 to 160 degrees at most but was only about 10 miles or so round trip and less then maybe 3000 miles of this happening to it over about 5 years. Problem is it was too cold of a thermostat and not the correct shroud setup to use the proper tstat so it would not get too hot at idle but also run around 190 at highway, but am fixing this as we speak. So I am gonna pull it out and pull the heads off to see what things look like.
I have not done a compression test yet but is in the works. If I happen to need to do a rebuild on this thing I have already done a deglaze before so that is out of the question and would need to do a .020 overbore or maybe .030 depending on what things look like. Engine has less then 15,000 on it.
My engine has a scat cast steel crankshaft with scat 5.7 press fit arp cap screw style connecting rods. Now I have heard and I think its incorrect information but I could be wrong but are you not able to do a .010 under on a cast crank or does it make it to weak and also effect the hardening of the surface treatment of the crank?
And also if I needed to have my rods resized are they able to do that with cap screw style rods and also am I able to get them bushed and does that make the rod any weaker since they would have to take some material off in order to bush it? I don't know what all it takes to do that and have little info on it. My bottom end might be ok as I will do a compression test and if all comes out good then am swapping out heads as I have already had them done once before with new guides and everything else but I think they stuck sorry seals on it. Thanks guys for any input
I have oil on all my spark plug threads but the ends themselves are clean with just normal combustion look on them with no fuel or oil buildup so looking like its the cylinder heads that either too much guide wear or bad seals but this engine has had a few years running too cold driving it to work with it only running around 150 to 160 degrees at most but was only about 10 miles or so round trip and less then maybe 3000 miles of this happening to it over about 5 years. Problem is it was too cold of a thermostat and not the correct shroud setup to use the proper tstat so it would not get too hot at idle but also run around 190 at highway, but am fixing this as we speak. So I am gonna pull it out and pull the heads off to see what things look like.
I have not done a compression test yet but is in the works. If I happen to need to do a rebuild on this thing I have already done a deglaze before so that is out of the question and would need to do a .020 overbore or maybe .030 depending on what things look like. Engine has less then 15,000 on it.
My engine has a scat cast steel crankshaft with scat 5.7 press fit arp cap screw style connecting rods. Now I have heard and I think its incorrect information but I could be wrong but are you not able to do a .010 under on a cast crank or does it make it to weak and also effect the hardening of the surface treatment of the crank?
And also if I needed to have my rods resized are they able to do that with cap screw style rods and also am I able to get them bushed and does that make the rod any weaker since they would have to take some material off in order to bush it? I don't know what all it takes to do that and have little info on it. My bottom end might be ok as I will do a compression test and if all comes out good then am swapping out heads as I have already had them done once before with new guides and everything else but I think they stuck sorry seals on it. Thanks guys for any input