340
#2
Mopar Lover
#6
Mopar Lover
360 heads with the full port/polish and a good 3 angle valve job, Performer RPM or LD340 with a MP 284/.484 cam, Holley 750 Vacuum secondary carb and TUNE, TUNE, TUNE! That with a good set of gears you should be able to take on all comers...in an A-Body, right?
j
j
#8
Mopar Fanatic
Thread Starter
ya its all for a 72 duster. thanks i think a buddy of mine has a set of 360 heads for it. how much u think the cam will run me for?. i was looking and i seen they have new front ends for them to handle better any of you think i should stick to the stock but beef it up a bit or swap it out.
#12
Mopar Lover
If you're worried, I'd just go straight for a 360 motor. They're easy to find.
Is this car special in any other way like high impact color or alot of options.
#14
Mopar Fanatic
Thread Starter
im not to sure of the options yet i didnt get to fig. out all the stuff on the pin but ill post it soon as i take a look. I might go with a 360 then.
#16
Mopar Fanatic
Thread Starter
heres my fender tag srry i didnt post it sooner been kind of busy. vsx en2, m21,n23 n41, n42, r11, v6x, hb1, u , b51, g15, L25, L31, hb1, c4x9, tx9, c13, 540813, E55, d34, vs23, h2b, 264515. i fig. out the basics it has a 340 its a duster, where it was made and that but im having a hard time trying to find out the options on it the build sheet is missing to the car
#17
Little Demon
Join Date: Aug 2008
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here is what I got, hope it helps
CodeDescriptionE55340-4 Barrel 69-73
D34TorqueFlite Automatic Transmission
VS23V = Plymouth Valiant / Duster
S = Special
23 = 2 Door Hardtop
H2BH = 340 240HP(net) 1-4BBL 8 CYL
2 = 1972
B = Dodge Main, Hamtramck, MI, USA
264515 Sequence Number '264515'
HB1 Paint Code: Light Blue
C4X9 Trim Grade/Style/Color
C = Charger
4 = Vinyl Split Bench w/ Center Armrest
X9 = Black
TX9 Upper Door Frame: Black / Black Velvet
C13 Date Built: 12 / 13 / 1971
540813 Order Number: 540813
HB1 Roof Type OR Color: Light Blue
U Built to Specifications for USA Order
B51 Power Assisted Brakes
G15 Tinted Windshield Only
L25 Trunk Compartment Light
L31 Hood / Fender Mount Turn Signal
M21 Roof Drip Rail Moldings
N23 Electronic Ignition 72 only
N41 Duel Exhaust w/o Tips
N42 Chrome Duel Exhaust Tips
R11 Music Master Radio AM
V6X Black Longitude Sports Stripe
VSX Unknown At This Time
EN2 End of Codes Assembly Line 2
CodeDescriptionE55340-4 Barrel 69-73
D34TorqueFlite Automatic Transmission
VS23V = Plymouth Valiant / Duster
S = Special
23 = 2 Door Hardtop
H2BH = 340 240HP(net) 1-4BBL 8 CYL
2 = 1972
B = Dodge Main, Hamtramck, MI, USA
264515 Sequence Number '264515'
HB1 Paint Code: Light Blue
C4X9 Trim Grade/Style/Color
C = Charger
4 = Vinyl Split Bench w/ Center Armrest
X9 = Black
TX9 Upper Door Frame: Black / Black Velvet
C13 Date Built: 12 / 13 / 1971
540813 Order Number: 540813
HB1 Roof Type OR Color: Light Blue
U Built to Specifications for USA Order
B51 Power Assisted Brakes
G15 Tinted Windshield Only
L25 Trunk Compartment Light
L31 Hood / Fender Mount Turn Signal
M21 Roof Drip Rail Moldings
N23 Electronic Ignition 72 only
N41 Duel Exhaust w/o Tips
N42 Chrome Duel Exhaust Tips
R11 Music Master Radio AM
V6X Black Longitude Sports Stripe
VSX Unknown At This Time
EN2 End of Codes Assembly Line 2
Last edited by Red Devil; 05-14-2009 at 07:24 AM.
#20
ive run a wide variety of small valve heads and different cam setups in my 340 mirada.
ive run the 484, 508, and 528..i stuck with the 528. with 1988 360 heads with a light porting job and a port matched edelbrock airgap, roller top end, headers.. i ran 12.40s @ 108ish in a 3600lb car. stock stroke, 30 over, BG lawsuit carb with a proform high flow center. oh, and im running around 9 to 1 compression...
in the demon i have a 340 with 1973 340 heads, stock bore and stroke, stock fuel system and ignition system...508 cam, ld3400 intake, 750 holley, it weighed right around 3000 and ran 13.50s @ 101 ish. i also ran the 484 cam in that engine, and it didnt run as well as the 508, although i dont have times for that cam. this is also a fairly low compression engine.
the 360 can be had MUCH cheaper than the 340.
ive run the 484, 508, and 528..i stuck with the 528. with 1988 360 heads with a light porting job and a port matched edelbrock airgap, roller top end, headers.. i ran 12.40s @ 108ish in a 3600lb car. stock stroke, 30 over, BG lawsuit carb with a proform high flow center. oh, and im running around 9 to 1 compression...
in the demon i have a 340 with 1973 340 heads, stock bore and stroke, stock fuel system and ignition system...508 cam, ld3400 intake, 750 holley, it weighed right around 3000 and ran 13.50s @ 101 ish. i also ran the 484 cam in that engine, and it didnt run as well as the 508, although i dont have times for that cam. this is also a fairly low compression engine.
the 360 can be had MUCH cheaper than the 340.
#21
Mopar Fanatic
Thread Starter
well iw ent a different route for now. i got an ld4b intake and didnt get the carb yet. i pulled off the heads and needs some cleaning up(ill get pics up in a bit). the rocker arm shaft on the 340 heads have the oil holes pointing up there supposed to be down right? if so the guy that rebuilt the motor didnt do it right. even when they did the pistons there looks to be a hair bit of rust in the cylinder walls not to sure yet didnt get to look at it closely.
#22
Mopar Fanatic
Thread Starter
well its not as bad as i thought it does have the cross hatch pattern and it is bored .030 over so that is a plus and the rust isnt deep probably just little 600 and it will be fine
#23
Mopar Lover
If you have the the heads rebuilt, make sure you have the hardened seats installed. You need those, unless you use a lead substitute with every fill up.
j
j
#25
Mopar Fanatic
Thread Starter
i took the valves out of one of the heads they are all new just one seat was hammered in and messed it up but we grinded it some and got it to seat.
#26
Mopar Lover
but, this isn't a necessity
i have heard of heads going ten of thousands of miles without the lead, and stilll being ok
#28
Mopar Lover
#30
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