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Re: Engine condition Opinions?
[Re: ccdave]
#2497830
05/19/18 12:08 PM
05/19/18 12:08 PM
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Joined: Jan 2003
Posts: 12,017
Benton, IL.
DaveRS23
Special needs idiot
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Special needs idiot
Joined: Jan 2003
Posts: 12,017
Benton, IL.
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If you change pistons, it really should be re-balanced. And new rod bolts and resizing the rods is also a very good idea. There goes a few hundred dollars.
How far out of spec are the cylinder bores? Keeping in mind that the budget is the prime motivator, why not just re-ring it?
If the cylinders aren't a train wreck, you might think about a hone job and throwing some new rings in along with new bearings and calling it good.
Way back when, we used to do that all the time. I remember knurling pistons that were way out of spec for the cylinders. It worked well in low speed applications. You can get several years out of a cheapy job like that if the pistons don't flop around in the cylinders too much. And of course, they make rings just for this.
It might be best to either do a full-on economy assembly or a full-on re-build. Not something in between.
Master, again and still
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Re: Engine condition Opinions?
[Re: DaveRS23]
#2497840
05/19/18 12:27 PM
05/19/18 12:27 PM
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Joined: Mar 2017
Posts: 195
Coastal Maine
Mr onetwo
OP
member
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OP
member
Joined: Mar 2017
Posts: 195
Coastal Maine
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If you change pistons, it really should be re-balanced. And new rod bolts and resizing the rods is also a very good idea. There goes a few hundred dollars.
How far out of spec are the cylinder bores? Keeping in mind that the budget is the prime motivator, why not just re-ring it?
If the cylinders aren't a train wreck, you might think about a hone job and throwing some new rings in along with new bearings and calling it good.
Way back when, we used to do that all the time. I remember knurling pistons that were way out of spec for the cylinders. It worked well in low speed applications. You can get several years out of a cheapy job like that if the pistons don't flop around in the cylinders too much. And of course, they make rings just for this.
It might be best to either do a full-on economy assembly or a full-on re-build. Not something in between. Budget  I just wanna drive my truck a bit this year!The guy said it was just inside .007 spec is .005 to .007 I guess.I would love to do exactly as you say Dave.I will call them Monday morning. i can save a bunch of money by using Enginetech bearings as opposed to Clevite 77...thoughts?
Last edited by Mr onetwo; 05/19/18 12:44 PM.
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Re: Engine condition Opinions?
[Re: Mr onetwo]
#2497935
05/19/18 06:21 PM
05/19/18 06:21 PM
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Joined: Oct 2007
Posts: 4,206
New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,206
New York
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Skip the EFI, put the money inside the engine.
Boffin Emeritus
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Re: Engine condition Opinions?
[Re: Mr onetwo]
#2498010
05/19/18 10:03 PM
05/19/18 10:03 PM
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Joined: Jan 2003
Posts: 12,017
Benton, IL.
DaveRS23
Special needs idiot
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Special needs idiot
Joined: Jan 2003
Posts: 12,017
Benton, IL.
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If you change pistons, it really should be re-balanced. And new rod bolts and resizing the rods is also a very good idea. There goes a few hundred dollars.
How far out of spec are the cylinder bores? Keeping in mind that the budget is the prime motivator, why not just re-ring it?
If the cylinders aren't a train wreck, you might think about a hone job and throwing some new rings in along with new bearings and calling it good.
Way back when, we used to do that all the time. I remember knurling pistons that were way out of spec for the cylinders. It worked well in low speed applications. You can get several years out of a cheapy job like that if the pistons don't flop around in the cylinders too much. And of course, they make rings just for this.
It might be best to either do a full-on economy assembly or a full-on re-build. Not something in between. Budget I just wanna drive my truck a bit this year!The guy said it was just inside .007 spec is .005 to .007 I guess.I would love to do exactly as you say Dave.I will call them Monday morning. i can save a bunch of money by using Enginetech bearings as opposed to Clevite 77...thoughts? Good oil, proper clearances, and low RPM doesn't require premium parts to live.
Master, again and still
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Re: Engine condition Opinions?
[Re: Mr onetwo]
#2498124
05/20/18 08:13 AM
05/20/18 08:13 AM
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Joined: Jun 2014
Posts: 3,159
Md.
carnut68
master
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master
Joined: Jun 2014
Posts: 3,159
Md.
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As stated the 2266 piston is terrible. They will be at least.060 -.080 in the hole. With an iron open chamber head thats a bad combo. No compression no quench. It'll run but it won't be efficient. You should try to get a piston with a 2.060- 2.065 compression hgt. Get your short block together then pic your cam. Do it right or you may pay later. Ask me how I know..
America First!
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Re: Engine condition Opinions?
[Re: Mr onetwo]
#2498173
05/20/18 12:09 PM
05/20/18 12:09 PM
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Joined: Jan 2003
Posts: 12,017
Benton, IL.
DaveRS23
Special needs idiot
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Special needs idiot
Joined: Jan 2003
Posts: 12,017
Benton, IL.
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That is certainly a mild cam. Why not just us a stock, original cam? There are a lot of them lying around and they have proven themselves to be very reliable.
Master, again and still
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Re: Engine condition Opinions?
[Re: DaveRS23]
#2498186
05/20/18 12:37 PM
05/20/18 12:37 PM
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Joined: Mar 2017
Posts: 195
Coastal Maine
Mr onetwo
OP
member
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OP
member
Joined: Mar 2017
Posts: 195
Coastal Maine
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I am going to get the Summit SUM-6400 cam and lifter kit as it is better than stock and you can't beat the price at $117.My question is how should I install the cam for my application...straight up or advanced?Also, it is a cast crank motor...what should I do about balancing?I don't have the rods yet, but when they arrive I will weigh both new and old assemblies and post up the difference.Also any thoughts on what I should do about a distributor and the ignition timing.Thanks in advance for your help!
Last edited by Mr onetwo; 05/26/18 06:52 AM.
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Re: Engine condition Opinions?
[Re: Mr onetwo]
#2500805
05/26/18 09:50 PM
05/26/18 09:50 PM
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Joined: Aug 2003
Posts: 43,123
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,123
Bend,OR USA
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Last edited by Cab_Burge; 05/26/18 09:51 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Engine condition Opinions?
[Re: Mr onetwo]
#2500961
05/27/18 11:47 AM
05/27/18 11:47 AM
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Joined: Aug 2003
Posts: 43,123
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,123
Bend,OR USA
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Thank you Mr.Cab, any thoughts on balancing? I would have it done by a good shop  There are two different weights involve in rotating assembly, the individual and total weights of each reciprocating and rotating parts and the rotational weights of the components, this is probably not the correct terms to describe what I mean but if you don't own or have access to a good automotive balancing machine have a good shop balance the rotating assembly for you
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Engine condition Opinions?
[Re: Mr onetwo]
#2506517
06/10/18 11:14 AM
06/10/18 11:14 AM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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cam bearings only need a 1/16" dia lube hole so if you have that much area left from how they clocked em you are fine but it would make me wonder about their meticulousness cuz that operation is a no brainer. any more than that is a waste of precious psi & the as produced cam bearing drilled hole is much bigger than 1/16" (the 2 that feed the heads-1/8" needed).
live every 24 hour block of time like it's your last day on earth
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talked me into it, I have decided to invest in the bottom end of this motor. I am going to get a set of Wiseco Pro Tru pistons and moly rings #PTS531A3. Only $92.77 more than the stock 350np's @ $411. I am also going to buy the 440 Source rods at $250 and use Clevite 77 bearings. I've already got a Melling HV oil pump. What other suggestions do you have to spend my money on this bottom end? 
