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02-10-2013, 03:33 PM | #1 |
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Re: 1955 12 Valve NAPCO Clone
I have been weighing my options for the past couple of weeks and yesterday I pulled the trigger on a 98 long block. I am hoping I can sell the front timing case and recuperate some money. I am gonna swap my cam, timing case and VE pump onto it. I think I should come out pretty even by the time I'm done. From what I checked on just a head gasket replacement was going to $250-350 and that didn't even address my bad cylinder. My engine ran fine but the knock was annoyance. And if I try to sell it it would hold me back.
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1955.2 Chevy 3100, 6bt, Getrag G360 5-speed, NP205, Dana 60/70 - http://67-72chevytrucks.com/vboard/s...d.php?t=536540 1992 Chevy K1500 Silverado ECSB 1965 "Crewcab" Chevelle 300 Deluxe - soon to be LBZ Duramax/4L85E powered |
02-10-2013, 04:08 PM | #2 |
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Re: 1955 12 Valve NAPCO Clone
Cool, you have a direction now, that's half the battle for me!
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02-10-2013, 04:16 PM | #3 |
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Re: 1955 12 Valve NAPCO Clone
Dieselwrencher will know for sure but I think the pistons in the 98 may have different bowls. The 1st gen inj have 145* spray patters and some 2nd gens do to but I think they also have 155*, and i'm assuming those would be in the later engines.
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Tony 1985 GMC K2500 restoration Project: Rust, White & Blue 1989 Chevy R3500 CC Cummins & 4X4 swap some day... 1989 Burb (D60, 14BFF, 12V, NV4500, NP205, 37" tires in progress) |
02-10-2013, 10:06 PM | #4 |
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Re: 1955 12 Valve NAPCO Clone
I am going to just use the long block as is so I will keep those injectors in there if my ve injector lines will connect to them?
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1955.2 Chevy 3100, 6bt, Getrag G360 5-speed, NP205, Dana 60/70 - http://67-72chevytrucks.com/vboard/s...d.php?t=536540 1992 Chevy K1500 Silverado ECSB 1965 "Crewcab" Chevelle 300 Deluxe - soon to be LBZ Duramax/4L85E powered |
02-10-2013, 11:37 PM | #5 |
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Re: 1955 12 Valve NAPCO Clone
They have different size threads, you could use the 2nd gen nozzles and first gen bodies but then you need the pop-off reset to ve pressures. Or I guess you could just put it together and run it with the spray pattern off a little. I would just get a p-pump. I'm sure Ryan will chime in soon but he hasn't been on in a few days so maybe he snowed in... or out.
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Tony 1985 GMC K2500 restoration Project: Rust, White & Blue 1989 Chevy R3500 CC Cummins & 4X4 swap some day... 1989 Burb (D60, 14BFF, 12V, NV4500, NP205, 37" tires in progress) |
02-11-2013, 11:26 AM | #6 | |
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Re: 1955 12 Valve NAPCO Clone
Quote:
I should have checked on that before I made my decision. I wonder if I would run into serious problems running VE injectors with the P pump pistons. I might check on putting the P pump tips on my VE bodies like you said.
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1955.2 Chevy 3100, 6bt, Getrag G360 5-speed, NP205, Dana 60/70 - http://67-72chevytrucks.com/vboard/s...d.php?t=536540 1992 Chevy K1500 Silverado ECSB 1965 "Crewcab" Chevelle 300 Deluxe - soon to be LBZ Duramax/4L85E powered |
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02-11-2013, 11:41 AM | #7 |
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Re: 1955 12 Valve NAPCO Clone
I did some searching and I found out that this:
"The Cummins Non-intercooled engines (1989 through December 31, 1990) use a 9mm injector hole, with a 155 degree injector spray angle. The piston bowls are shaped correspondingly, HOWEVER the (Lucas) POD injector (7mm hole) is the same spray pattern, as are the Marine 370 injectors (7mm hole). Simply using the aformentioned shims will allow the use of 7mm injectors in the 9mm head. Some people make a big deal out of the fact the the 9mm head has a definite cracking issue in the injector hole, and while they do tend to crack there and they do seep through the washers, they seldom ever do much more than seep a minute amount of compression. To this point, personally, I have never seen them crack and have a coolant issue. The spray angle on the '91.5-'93 INTERCOOLED injectors is 145 degrees. The spray angle on the '94-'98 (pre 24 valve) injector is also 145 degrees. The injector BODIES are different where the injector line fitting attaches to the body. The '94-'98 line fitting is larger than the '89-'93 style. The tips (sometimes called "nozzles") interchange between the bodies on all years, but the "pop pressures" (Initial line pressure required to move the pintle) differs between the 2 different pump styles (89-'93 VE vs. '94-'98 P-7100). I (and others) consider the Non-Intercooled VE engine to be the "Hot Rod" engine of the VE line, as it has the largest stock injectors, flow wise, (4x.013) of all the 12 valve engines, as well as a bit more agressive cam profile. As stock, the non-intercooled VE pump is usually very conservatively tuned, with much more capacity available in it's adjustments. The above specs are to be credited to the GREAT FOLKS at 1stGen.org. Mark." So it looks like I have lucked out on this. I can just reuse my injectors since I have a 91.5 year model. Sheww! I just made it by the skin of my teeth. I would like to possibly upgrade injectors down the road but I don't have the cash flow to do that now unless I unload some parts. I will have to check on selling these P Pump injectors and front timing housing.
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1955.2 Chevy 3100, 6bt, Getrag G360 5-speed, NP205, Dana 60/70 - http://67-72chevytrucks.com/vboard/s...d.php?t=536540 1992 Chevy K1500 Silverado ECSB 1965 "Crewcab" Chevelle 300 Deluxe - soon to be LBZ Duramax/4L85E powered |
02-11-2013, 03:13 PM | #8 |
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Re: 1955 12 Valve NAPCO Clone
That's good news, and makes a little more since than them changing spray patterns in the middle of the p-pump second gens. It just depends where you get your info because one place will say one thing and and another will say something completely different. Sorry if I had you worried there! LOL
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Tony 1985 GMC K2500 restoration Project: Rust, White & Blue 1989 Chevy R3500 CC Cummins & 4X4 swap some day... 1989 Burb (D60, 14BFF, 12V, NV4500, NP205, 37" tires in progress) |
02-11-2013, 03:40 PM | #9 |
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Re: 1955 12 Valve NAPCO Clone
Oh no your good! I need folks like you to make sure I don't do something stupid. I hadn't even thought about the issues like connections to my pump and pop off pressure. I called a diesel place here in Alabama and he said they could check the nozzles on the 98 injectors and see if they are any bigger for more power. Thinking about using the bodies of the first gen injectors with the internals of the 98 injector with the pop off pressure adjusted for a VE pump. I am gonna check with Dieselwrencher because i'm sure he has prolly come across this problem.
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1955.2 Chevy 3100, 6bt, Getrag G360 5-speed, NP205, Dana 60/70 - http://67-72chevytrucks.com/vboard/s...d.php?t=536540 1992 Chevy K1500 Silverado ECSB 1965 "Crewcab" Chevelle 300 Deluxe - soon to be LBZ Duramax/4L85E powered |
02-11-2013, 04:23 PM | #10 |
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Re: 1955 12 Valve NAPCO Clone
Here is a pic of that new long block. Lord willing it will be in good shape because this truck is turning into an albatross.
I thought you guys might get a kick out of this. I have been working on my long term project while waiting on fundings for the new to me long block.
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1955.2 Chevy 3100, 6bt, Getrag G360 5-speed, NP205, Dana 60/70 - http://67-72chevytrucks.com/vboard/s...d.php?t=536540 1992 Chevy K1500 Silverado ECSB 1965 "Crewcab" Chevelle 300 Deluxe - soon to be LBZ Duramax/4L85E powered |
02-11-2013, 05:02 PM | #11 |
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Re: 1955 12 Valve NAPCO Clone
Now that is awesome!
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Tony 1985 GMC K2500 restoration Project: Rust, White & Blue 1989 Chevy R3500 CC Cummins & 4X4 swap some day... 1989 Burb (D60, 14BFF, 12V, NV4500, NP205, 37" tires in progress) |
02-11-2013, 08:25 PM | #12 |
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Re: 1955 12 Valve NAPCO Clone
So is the 66? or 67? going to have a 6.2 as well? Maby add a turbo to that one . lol
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56 gmc 4X4 Cummins 5 spd 60F 70R 2005 Ram 3500 DRW cummins 4X4. 2006 Conolift 9/15. 2011 F 350 winter beater New 2018 ram 3500 drw 4x4. Makes my 2005 Look as if it's been running on 4 cyl since new ! My Build http://67-72chevytrucks.com/vboard/s...d.php?t=556908 |
02-11-2013, 10:25 PM | #13 |
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Re: 1955 12 Valve NAPCO Clone
Haha no this one is strictly Big Block Chevy gas guzzling power! And it's a 67.
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1955.2 Chevy 3100, 6bt, Getrag G360 5-speed, NP205, Dana 60/70 - http://67-72chevytrucks.com/vboard/s...d.php?t=536540 1992 Chevy K1500 Silverado ECSB 1965 "Crewcab" Chevelle 300 Deluxe - soon to be LBZ Duramax/4L85E powered |
02-11-2013, 11:30 PM | #14 |
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Re: 1955 12 Valve NAPCO Clone
Is that your Impala SS as well??
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56 gmc 4X4 Cummins 5 spd 60F 70R 2005 Ram 3500 DRW cummins 4X4. 2006 Conolift 9/15. 2011 F 350 winter beater New 2018 ram 3500 drw 4x4. Makes my 2005 Look as if it's been running on 4 cyl since new ! My Build http://67-72chevytrucks.com/vboard/s...d.php?t=556908 |
02-12-2013, 11:26 AM | #15 |
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Re: 1955 12 Valve NAPCO Clone
That's the old man's.
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1955.2 Chevy 3100, 6bt, Getrag G360 5-speed, NP205, Dana 60/70 - http://67-72chevytrucks.com/vboard/s...d.php?t=536540 1992 Chevy K1500 Silverado ECSB 1965 "Crewcab" Chevelle 300 Deluxe - soon to be LBZ Duramax/4L85E powered |
02-14-2013, 12:58 PM | #16 |
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Re: 1955 12 Valve NAPCO Clone
Pulled the engine out... AGAIN!
Hoping to get everything swapped over pretty quickly because I'm tired of pushing this truck around by myself. How do some of you move your projects around by yourself? The plan for now is to use the VE cam (possibly lifters too don't know if it is worth the trouble). I'm contemplating skipping the tooth on the timing but i'm not sure if too advanced of timing didn't start my first problem. Double trouble Also I felt the inside of the #6 while I had it out. I don't think there is anyway I could have honed it and let it ride. It was pretty rough.
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1955.2 Chevy 3100, 6bt, Getrag G360 5-speed, NP205, Dana 60/70 - http://67-72chevytrucks.com/vboard/s...d.php?t=536540 1992 Chevy K1500 Silverado ECSB 1965 "Crewcab" Chevelle 300 Deluxe - soon to be LBZ Duramax/4L85E powered |
02-14-2013, 04:48 PM | #17 |
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Re: 1955 12 Valve NAPCO Clone
If high timing was your issue, you would have more than one cylinder with a burnt piston or scoring. I'd skip a tooth and run the IP in the fully retarded position so you can access everything better. This will net about the same timing as the IP fully roatated (advanced) but leaves access for idle and ease of fuel screw adjusting.
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
02-14-2013, 08:00 PM | #18 |
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Re: 1955 12 Valve NAPCO Clone
Hi luther . nice to see some progress. I will ask abt the alt 1 wire setup. Here is how I move projects around by myself
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56 gmc 4X4 Cummins 5 spd 60F 70R 2005 Ram 3500 DRW cummins 4X4. 2006 Conolift 9/15. 2011 F 350 winter beater New 2018 ram 3500 drw 4x4. Makes my 2005 Look as if it's been running on 4 cyl since new ! My Build http://67-72chevytrucks.com/vboard/s...d.php?t=556908 |
02-14-2013, 08:43 PM | #19 |
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Re: 1955 12 Valve NAPCO Clone
I usually push them as far as I can by my self and use my 95 F-350 to push them if I can get it close .
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
02-14-2013, 10:47 PM | #20 |
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Re: 1955 12 Valve NAPCO Clone
I just use the backhoe or skidloader.
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Tony 1985 GMC K2500 restoration Project: Rust, White & Blue 1989 Chevy R3500 CC Cummins & 4X4 swap some day... 1989 Burb (D60, 14BFF, 12V, NV4500, NP205, 37" tires in progress) |
02-15-2013, 01:07 AM | #21 |
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Re: 1955 12 Valve NAPCO Clone
I'm gonna have to get some sorta front end loader. I do it about like dieselwrencher does. I just grab on to the tires lugs and roll as far as I can til I feel like busting a blood vessel. Then I nudge it in with my truck.
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1955.2 Chevy 3100, 6bt, Getrag G360 5-speed, NP205, Dana 60/70 - http://67-72chevytrucks.com/vboard/s...d.php?t=536540 1992 Chevy K1500 Silverado ECSB 1965 "Crewcab" Chevelle 300 Deluxe - soon to be LBZ Duramax/4L85E powered |
02-15-2013, 10:44 AM | #22 |
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Re: 1955 12 Valve NAPCO Clone
The loader is nice I tell ya. But it is only here due to farm work. Kinda hard to account for the expence of tractors unless they have some sort of work to do . I always just pushed with another truck with a old tire inbetween before I bought the farm .
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56 gmc 4X4 Cummins 5 spd 60F 70R 2005 Ram 3500 DRW cummins 4X4. 2006 Conolift 9/15. 2011 F 350 winter beater New 2018 ram 3500 drw 4x4. Makes my 2005 Look as if it's been running on 4 cyl since new ! My Build http://67-72chevytrucks.com/vboard/s...d.php?t=556908 |
02-15-2013, 10:45 AM | #23 |
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Re: 1955 12 Valve NAPCO Clone
i used to use our skid loader religiously, but it broke so I've been doing without since.
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
02-15-2013, 09:55 PM | #24 |
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Re: 1955 12 Valve NAPCO Clone
Hey luther.
how do I get the master cyl for the clutch off the firewall of the dodge???? I havent looked yet but it is my job 4 tomorrow to get it all out of the ram and fabbed up and into the 56.
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56 gmc 4X4 Cummins 5 spd 60F 70R 2005 Ram 3500 DRW cummins 4X4. 2006 Conolift 9/15. 2011 F 350 winter beater New 2018 ram 3500 drw 4x4. Makes my 2005 Look as if it's been running on 4 cyl since new ! My Build http://67-72chevytrucks.com/vboard/s...d.php?t=556908 |
02-16-2013, 02:21 AM | #25 |
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Re: 1955 12 Valve NAPCO Clone
Rotate it to the left a quarter turn and it'll pull right out. Make sure you disconnect the safety switch wiring and the linkage to the pedal. Also you might wanna keep the system attached to avoid having to bleed them.
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1955.2 Chevy 3100, 6bt, Getrag G360 5-speed, NP205, Dana 60/70 - http://67-72chevytrucks.com/vboard/s...d.php?t=536540 1992 Chevy K1500 Silverado ECSB 1965 "Crewcab" Chevelle 300 Deluxe - soon to be LBZ Duramax/4L85E powered |
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