Re: 340 Re-Rebuild or take my chances
[Re: hyefatman]
#2390657
10/21/17 02:27 AM
10/21/17 02:27 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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I would correct the rockers etc & preoil & fog the cyls & possibly pull the intake or at least borescope to see if the lobes are gooped & you might be able to see in the dist port if the lobes on that end are lubed. If it fubars you will be paying for a rebuild anyhow (assuming it dont blowup) so just me I would fire it up as is. do all the std preprep for a successful breakin. Hopefully the rebuilder just did not know some of the top end Mopar specific valve train peculiarities & that the long block was done adequately.
live every 24 hour block of time like it's your last day on earth
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Re: 340 Re-Rebuild or take my chances
[Re: hyefatman]
#2390688
10/21/17 05:16 AM
10/21/17 05:16 AM
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Joined: Aug 2003
Posts: 43,202 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,202
Bend,OR USA
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When in doubt, check it out as far as needed to make you comfortable Is Rettig Bros. machine shop in Fresno or further south ? If they are close they would be the ones I would and do recommend, if not close or to busy to help you there are several others outstanding Mopar drag race engine builders near you also besides Rettig Bros. I think Don Little is still taking in work, he is in Patterson If he isn't he might be able to refer you to some else that is real good also
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 340 Re-Rebuild or take my chances
[Re: Dave Hall]
#2391824
10/23/17 02:59 PM
10/23/17 02:59 PM
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Joined: Jan 2003
Posts: 10,723 North Dakota
6PakBee
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,723
North Dakota
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If everything is new, it is highly unlikely that disassembling it will destroy anything. And you will have peace of mind. I had a friend that bought an allegedly rebuilt 383 short block some years back. Wanted me to help him with final assembly and installation. I told him the only way I would have my name associated with that was to disassemble the short block. He balked but when we pulled the pistons and found two that had the ends of the oil ring spacer overlapped....well it was a different story then.
"We live in a time when intelligent people are being silenced so that stupid people won't be offended".
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Re: 340 Re-Rebuild or take my chances
[Re: hyefatman]
#2392082
10/23/17 11:00 PM
10/23/17 11:00 PM
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Joined: Jun 2016
Posts: 63 Florida
1930
member
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member
Joined: Jun 2016
Posts: 63
Florida
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I had my 340 rebuilt a year ago and it sat in my shop. I am now ready to install it into my dart, but I noticed the rocker arms were installed incorrectly. This is something of a concern because the NAPA auto that rebuilt the motor is now out of business. I can correct the rocker arm install however, I am thinking the guy may have made other mistakes. So my question, Do I fix what I see and call it good or do I spend the money and have another rebuilder tear it down and reinstall? Why would you take it too Napa in the first place, did you know someone there, in my area at least taking your stuff too a Napa machine shop is equivalent to taking your car to Maaco for a paintjob and on top of that a desirable getting rarer every day engine? If you want it done right, take your time and do it yourself, at least then you will hopefully know at the end that the best was done and if it blows up than you havent done anything worse than the so called professionals at Napa would have done.
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Re: 340 Re-Rebuild or take my chances
[Re: 1930]
#2392119
10/24/17 12:24 AM
10/24/17 12:24 AM
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Joined: Jan 2003
Posts: 10,574 Freeport IL USA
poorboy
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,574
Freeport IL USA
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I had my 340 rebuilt a year ago and it sat in my shop. I am now ready to install it into my dart, but I noticed the rocker arms were installed incorrectly. This is something of a concern because the NAPA auto that rebuilt the motor is now out of business. I can correct the rocker arm install however, I am thinking the guy may have made other mistakes. So my question, Do I fix what I see and call it good or do I spend the money and have another rebuilder tear it down and reinstall? Why would you take it too Napa in the first place, did you know someone there, in my area at least taking your stuff too a Napa machine shop is equivalent to taking your car to Maaco for a paintjob and on top of that a desirable getting rarer every day engine? If you want it done right, take your time and do it yourself, at least then you will hopefully know at the end that the best was done and if it blows up than you havent done anything worse than the so called professionals at Napa would have done. I suppose that would have everything to do with the individual NAPA store. Some have had very good machine shops in them over the years. What may have been a bad experience with one should not condemn them all. Gene
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