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390 truck build questions

December 2 2012 at 7:10 AM
garry  (Login GJCAT427)
Members

Ok I`m in the process of building a 56 C600 truck for a toy hauler. I`m thinking of building a 390 motor to put in the truck. Any recomendation on cam, compression and heads? Driveline will concist of Clark 5spdOD and the OEM 2spd axle, lowpro 22.5 tries. The truck will look like a large pickup with a 9' box. I`m looking for low rpm torque and a resasonable road speed and milage.

 
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Blair Patrick
(Login CaptCobrajet)
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Truck combo................

December 2 2012, 9:13 AM 

For something with the potential for hauling.....even HEAVY hauling.........here you go:

Three web block with main studs.

4.375 FORGED crank

Crower forged rod

tighten up the bearing clearances from a hot rod build

steel top ring

Iron D2 heads with hard ex seats, 2.09/1.66

Edelbrock regular Performer manifold

mid 220's at .050 and .550 lift, 110 sep hydro roller

9.2 to 1 static

670 street avenger Holley or a 585 off a '85 Mustang (annular primaries)

458 cubes at 4.080 bore

Basically a boat engine with a little cam.



Blair Patrick


    
This message has been edited by CaptCobrajet on Dec 2, 2012 9:19 AM


 
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Rod C
(Login MT63AFX)
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My 57 COE has a simple 390 4V with D2 heads. Don't know the specs..................

December 2 2012, 9:19 AM 

.........on the cam, sounds kinda OE to me. Has the OE 4-spd (Granny first gear) and 2-spd rear axle. It has the OE widow-maker, split rims, 19.5s I believe. Have towed a car with one on the deck and it didn't even know they were there. Carb is a Shelby/Holley (S2SM?) for a SBF. Mileage is usually in the teens with just the LWG on deck, Rod.

[linked image]

Mickey Thompson's 63 1/2 #997 S/S Hi-Rise 427 Lgt/Wgt Galaxie,
1957 C-600 Cab-over carhauler w/390-4V, 2-speed rear-end
FGCofA member #4908
MCGC member #75

"There will ALWAYS be an FE in my LiFE"

[linked image]


    
This message has been edited by MT63AFX on Dec 2, 2012 9:20 AM


 
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garry
(Login GJCAT427)
Members

Rod, whats the weight ,,,,

December 2 2012, 12:24 PM 

of your truck? And road speed?

 
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Rod C
(Login MT63AFX)
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Never had it weighed, but first plates were for 24Ton, later had it......................

December 2 2012, 1:49 PM 

............'adjusted' to a specified weight of 7,8xx wink.gif. Observed posted speed limits wink.gif. I have a 391FT with an Allison on it from a school bus ready/waiting to go in, Rod.

Mickey Thompson's 63 1/2 #997 S/S Hi-Rise 427 Lgt/Wgt Galaxie,
1957 C-600 Cab-over carhauler w/390-4V, 2-speed rear-end
FGCofA member #4908
MCGC member #75

"There will ALWAYS be an FE in my LiFE"

[linked image]

 
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Randy Millard
(Login Henrysnephew)
Members

Rod, I'm thinking you mean 24K, not T - ??? N/M

December 2 2012, 3:58 PM 


 
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Rod C
(Login MT63AFX)
Members

Busted, lol. You're right Randy, 24K, thanks.........n/m

December 2 2012, 9:25 PM 

.

Mickey Thompson's 63 1/2 #997 S/S Hi-Rise 427 Lgt/Wgt Galaxie,
1957 C-600 Cab-over carhauler w/390-4V, 2-speed rear-end
FGCofA member #4908
MCGC member #75

"There will ALWAYS be an FE in my LiFE"

[linked image]

 
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John Ferguson
(Login 57F600-390)
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390 build

December 3 2012, 4:32 AM 

My 57 F600 wrecker has a .030 over flatop 390 with D2 heads headers and dual exhaust.
Cam is a generic 204@.050 int 214@.050 EX. C4 iron 4bbl intake 600 vac sec holley, recurved distributor. Engine runs on regular gas no pinging , truck has 5spd with 2 spd rear. Engine is a torque beast pulls like crazy but still gets decent fuel milage. I regularly tow way more than I should and overload the truck , but have yet to get into a situation wher I ran out of power. If you not carefull that 390 will break something,
U Joints , twist splines on axles, clutch centers ect.


Have A Great Day ------- John Ferguson

 
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