Stage 4 heads and N.O.S. low deck str intake

[Charger686970]

I was looking through some of my big block parts and found my stage IV direct connection heads and was thinking of selling them. Does anyone have a idea of what they might be worth? I also have a N.O.S. low deck str intake with the single 4bbl lid for a thermo-quad I want to sell. I have a idea on the price for the intake but the heads I have no clue. They came off my running 383 19years ago and got put on the shelf and not touched since. All of our motor builds have been getting Indy or Edelbrock aluminum heads. If they are not worth much more then a good set of 906 or 452 heads I would just keep them around for a you never know motor. The casting numbers on the heads are 3614476 and have the rocker shafts with adjustable rockers on them. Thanks

 

[Garys1969RR]

Are those heads just the 452 design but cast in aluminum? What size are the valves?

 

[Charger686970]

Are those heads just the 452 design but cast in aluminum? What size are the valves?

They are iron with 2.08 and 1.74 valves and I think the adjustable rockers are crane that are on them. They also have D and C cast in them with the direct connection logo between the D and C. I don't know a lot about them other then what I read in the mopar speed secret book. From what I did research on them they are supposed to be 86cc and I found flow chart on the web with a bunch of different heads tested and they showed the stage IV flowing almost the same numbers as the out of the box edelbrock aluminum heads but I not sure how accurate the flow numbers were. I assume the valves are still the stock 2.08 and 1.74 I never checked to see if they were ever changed to the larger 2.14 and 1.81. I just unbolted them off the motor and threw them on the shelf. The motor was already done when I bought the car, I put 5 miles on it playing around the pulled the car apart for a complete restoration, sold the short block to a friend and kept the heads.

 

[dieseldazzle]

I wonder if they have hardened seats?

 

[Charger686970]

I wonder if they have hardened seats?

Not sure, I think they are. Think they are pretty much a 452 with larger intake and exhaust ports. From what I read they were made around 1978 according to a article written by Larry Shepard

 

[lewtot184]

they are the forerunner to the stage v. the have a revised intake port but will not flow like edelbrocks in out of the box condition. they don't have a heat cross over, nor an unleaded exhaust seat (to the best of my knowledge. the later version of the stage v had a cross over plus an unleaded seat). they can be made to perform reasonably well but would need the big valves and port work, an added expense. i have some stage v's that flow better than OOTB edelbrocks but i've got some $$$$ in them. the stage v has a revised intake and exhaust port. my v's have the push rod pinch almost eliminated and i think the iv's are the same. unfortunately most folks don't know much about the iv's and v's and they get an undeserved bad rap.

 

[Charger686970]

they are the forerunner to the stage v. the have a revised intake port but will not flow like edelbrocks in out of the box condition. they don't have a heat cross over, nor an unleaded exhaust seat (to the best of my knowledge. the later version of the stage v had a cross over plus an unleaded seat). they can be made to perform reasonably well but would need the big valves and port work, an added expense. i have some stage v's that flow better than OOTB edelbrocks but i've got some $$$$ in them. the stage v has a revised intake and exhaust port. my v's have the push rod pinch almost eliminated and i think the iv's are the same. unfortunately most folks don't know much about the iv's and v's and they get an undeserved bad rap.

Thanks for the info. I found very little info on them when I was looking. The only reason I never used them on the 383 I built was the cc of the head and the piston I had would have given me too low of a compression ratio. I went with the Indy 440ez's with the 75cc chamber and it gave me 9.8:1 compression, I was going to have them milled to give me more compression but I eventually want to stroke the 383 so I just left them alone. When I first started looking into building my 383 and was talking to Hughes racing engines they said the stage IV with some work are a really good head.

 

[lewtot184]

those heads, with some work, matched to a 440 with quench dome pistons could make a fun street/strip combo.

 

[Charger686970]

those heads, with some work, matched to a 440 with quench dome pistons could make a fun street/strip combo.

The 383 was already built when I bought the car but it had domed pistons .030, 11.5:1 comp. solid flat tappet with .533/.557 lift cam 383 torker intake, 800cfm holley carb the stage IV heads, they had the back of the 4spd tunnel cut out for the rods for the hurst super shifter welded the tranny mount solid and put 5.13 gears in the 8 3/4 I was told the car ran 12.10's. I bought it pulled it apart for a restoration sold the short block and gears kept the heads, tranny. Supposedly the motor and 4spd only had approx. 2000-2500 miles on both after complete rebuilds when I bought the car. It was all built in 1979 and I bought the car in 1995 a month or so after I graduated high school. The owner got mad when he had the car painted candy apple red and a week later the paint lifted like someone had poured a chemical stripper on the car, so I bought 1 of the 259 383 4bbl 4spd 68 chargers built for $1800.00. It was the non matching motor and tranny in the car when I got it.