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10-07-2003, 12:34 PM
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CC Member
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Join Date: Aug 2001
Location: Scotts Valley,
CA
Cobra Make, Engine: Heading the 289FIA route, ERA is the choice du jour
Posts: 118
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Not Ranked
428 PI, CJ, or SCJ block fair market value
What's the current fair market value for a 30+ year old 428 PI, CJ, or SCJ block?
I'm looking for a good block for a Cobra engine build, and have decided on the 428 FE. I figure I'd like to start with a bare block and put in all new crank, cam, pistons, rods...
How much are bare blocks (including main bearing caps) going for? Anybody?
__________________
"Success discloses faults that failure would have otherwise concealed." J. S. Mill
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10-07-2003, 12:58 PM
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CC Member
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Join Date: Oct 2002
Location: Fairfield,
CT
Cobra Make, Engine: HM-2027 / 427 SO
Posts: 815
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Not Ranked
Depending on overbore size $200-500 used. DSC motorsports has NOS service blocks for $800. Spending any more on a used block make sure it's a std bore. Carefull what you buy some like to overbore a 390 to 4.13 and sell it as a 428. Good luck, G.
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10-07-2003, 02:37 PM
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CC Member
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Join Date: Aug 2001
Location: Scotts Valley,
CA
Cobra Make, Engine: Heading the 289FIA route, ERA is the choice du jour
Posts: 118
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Not Ranked
FFR428: What is a NOS Service block?
__________________
"Success discloses faults that failure would have otherwise concealed." J. S. Mill
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10-07-2003, 03:24 PM
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Senior Club Cobra Member
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Join Date: Mar 2001
Location: Northport,
NY
Cobra Make, Engine: Kirkham, KMP178 / '66 GT350H, 4-speed
Posts: 10,362
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Not Ranked
Quote:
Originally posted by DKing
FFR428: What is a NOS Service block?
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NOS = New Old Stock; meaning original part from old stock, never used.
Service Block = means part was a replacement block, usually made after the model year. Never was installed as part of a new car. |
10-07-2003, 03:36 PM
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CC Member
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Join Date: Jun 2003
Location: Freedomia,,
Il
Cobra Make, Engine: Coupe,Blue w/white stripes SB; Roadster, Blue w/white stripes BB w/2-4s; SPF installer/Hot Rod-Custom Car builder
Posts: 1,376
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Not Ranked
I just had an e mail reply from DSC last week and the $800 standard bore service block wasn't indicated as being NOS, they also had a standard bore '70 CJ block for $1200.
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WDZ
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10-07-2003, 04:27 PM
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CC Member
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Join Date: Jul 2003
Posts: 38
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Not Ranked
428 $$$$
I paid $1200 for my 428 standard bore service block 2 years ago. It was coated in cosmoline and looked NOS, although the taper in the cylinders indicated other, so be carefull you should take a bore gauge and check the taper before you accept it as NOS.
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10-07-2003, 05:12 PM
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CC Member
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Join Date: Apr 2001
Location: Abe Lincolns Birthplace,
Ky
Cobra Make, Engine: CSX4761, KCR Shelby Alloy 496,760hp
Posts: 867
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Not Ranked
Ok,,maybe some of you guru's know this,,
Until recently I thought the pristine 38k original miles,,still has the exhaust locks and the staples thru the valve cover gaskets motor I have been coveting was a 428,turns out to be a 410,can I bore this thing to get to 4.13 and still be safe ? using the stock crank,10.5 -1,and eldebrock heads,and say a 6500 rpm redline,will it make a decent street motor durabilty wise ? I am thinking it should make 400-425 hp with the right cam and carb/intake choice,any one care to elaborate ?
thanks,Tk
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Tk
"this whole Adult thing just isnt working for me "
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10-07-2003, 06:13 PM
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CC Member
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Join Date: Jun 2003
Location: Freedomia,,
Il
Cobra Make, Engine: Coupe,Blue w/white stripes SB; Roadster, Blue w/white stripes BB w/2-4s; SPF installer/Hot Rod-Custom Car builder
Posts: 1,376
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Not Ranked
I'd have the walls checked,but you should be able to 428 it. If the walls are of a good thickness you shouldn't have any reliability problems.
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WDZ
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10-07-2003, 06:24 PM
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Senior Club Cobra Member
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Join Date: May 2001
Location: Florence,
AL
Cobra Make, Engine: RCR GT 40 & 1966 Fairlane 390 5 speed
Posts: 4,511
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Not Ranked
FOUR TEN
WHAT IS WRONG WITH DRIVING THE 410??
GOOD MOTOR, LOOKS LIKE A 428, CAN BORE LATER!!! 
__________________
''Life's tough.....it's even tougher if you're stupid.'' ~ John Wayne
"Happiness Is A Belt-Fed Weapon"
life's goal should be; "to be smarter than inanimate objects"
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10-08-2003, 11:09 AM
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CC Member
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Join Date: Apr 2001
Location: Abe Lincolns Birthplace,
Ky
Cobra Make, Engine: CSX4761, KCR Shelby Alloy 496,760hp
Posts: 867
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Not Ranked
I agree with you Dwight,,but I am not sure I can bring myself to do it without a tear down for inspection,so i am thinking it would be a good time to redo it,,another idea is to get eldebrock heads,mill them to whatever to get to 10.1,add an intake and carb ,cam and let it roll,,this is just a play motor anyway since I am going to have an extra car,I cant afford another big buck engine. thanks,,Tk
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Tk
"this whole Adult thing just isnt working for me "
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10-08-2003, 11:11 AM
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CC Member
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Join Date: Apr 2001
Location: Abe Lincolns Birthplace,
Ky
Cobra Make, Engine: CSX4761, KCR Shelby Alloy 496,760hp
Posts: 867
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Not Ranked
Woodz,,,i can mic the bottom of the cylinders when I pull the pan,,what should the nominal thickness be after the over bore ?
Tk
__________________
Tk
"this whole Adult thing just isnt working for me "
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10-09-2003, 05:42 PM
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CC Member
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Join Date: Oct 2002
Location: Fairfield,
CT
Cobra Make, Engine: HM-2027 / 427 SO
Posts: 815
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Not Ranked
Woodz, I was under the impression the DSC blocks were NOS. That would explain the cheap price. I paid $1200 for mine a few years ago from Carls. He sells them for $2250 now!!!! youch!
Misfit, sounds like the 410 is an awsome motor. Careful how much you bore that pup to. If it was me I'd clean it up and rebuild it as is to leave something for the next time. Also check what 390 block you have if you punch it to 4.13. some have thinner walls then others. Do you think this is original 410? Nice and rare if it is. G.
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10-09-2003, 05:50 PM
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CC Member
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Join Date: Apr 2001
Location: Abe Lincolns Birthplace,
Ky
Cobra Make, Engine: CSX4761, KCR Shelby Alloy 496,760hp
Posts: 867
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Not Ranked
Hi G
I am 99%,It is still in a car,67 merc parklane breezeway brougham,,WHEWW !!lol,the code could be 410 or 428,which is what I hoped for,but the dist tag says 410,this car had 38k original miles,,valve covers seem to have the original gaskets,they have the silver with staples over the tabs,motor paint and everything is untouched,my only hang up is that the car is so nice,original paint,interior,vinyl top ,and spare,never driven in the rain,NO RUST !,has a scrape on the right side,I know this is dragging on,the point is,I bought this car for a song ,I hate to rape it but I doubt it would bring what the drive train and all the bolts and goodies are worth to me,a few beers and I may hack away.
long sentence huh,,Tk
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Tk
"this whole Adult thing just isnt working for me "
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10-11-2003, 07:58 AM
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CC Member
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Join Date: Oct 2002
Location: Fairfield,
CT
Cobra Make, Engine: HM-2027 / 427 SO
Posts: 815
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Not Ranked
Wow you don't find too many original cars like that anymore. Sounds like you found a survivor! Really think hard before tearing it up as it would be worth a pretty penny to some of the hardcore merc guys being completely original and all. Although I also would be more than tempted to dig into it also! Good luck, G.
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