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360 freshen up -- feedback needed #1122611 11/27/11 08:21 PM 11/27/11 08:21 PM
Joined: Jan 2003 Posts: 4,323 NY NY 3 340duster340 OP master
340duster340 OP master 3 Joined: Jan 2003 Posts: 4,323 NY NY	my plan is to freshen up a 360 i have from motor home and put it into a 66 dart. trying not to spend a lot and obviously won't be a hi-po motor but i would like it to be fun to drive. here is what i have so far: - 74 360 w/ 74K miles - 340 HP manifolds - 360 heads from '90 LA360 roller motor (to be rebuilt and swapped out for whats currently on it) - transmission will be rebuild a904 with stock converter (i got this from a parts car). here is what need advise on: - what cam (and should i replace valve springs?) - what intake (single or dual plane) *i have a 340 oem cast iron intake for spread bore) - should i look for a better set of heads? my plan is to do this on the cheap with exception of the 340 HP manifolds which cost a bundle but no other options for the early a's thanks in advance. 1966 Dart GT ...down to only 1 mopar for the first time in 15 years!

Re: 360 freshen up -- feedback needed [Re: 340duster340] #1122612 11/27/11 08:34 PM 11/27/11 08:34 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	What are your plans for the car... what kind of HP do you want to make(what rear end is under the car)

Re: 360 freshen up -- feedback needed [Re: MR_P_BODY] #1122613 11/27/11 08:40 PM 11/27/11 08:40 PM
Joined: Jan 2003 Posts: 4,323 NY NY 3 340duster340 OP master
340duster340 OP master 3 Joined: Jan 2003 Posts: 4,323 NY NY	it will be a daily driver/weekend car. to make long story short, a friend left it to me after we passed away. for now the rear will be 8.25 so i can get the large bolt pattern, unsure of gears, but can change them as needed or ideally get an 8.75 rear. sticking with stock wheel wells, but will be running 15 inch rims.

Re: 360 freshen up -- feedback needed [Re: 340duster340] #1122614 11/27/11 08:41 PM 11/27/11 08:41 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: my plan is to do this on the cheap Manual steering I'm assuming (340 HP's might not fit PS). Use the spreadbore & rebuild your thermoquad. Are these heads the closed chambered ones (I forget the #). They'll bump your CR a bit. Need to slightly mod the trans crossmember on pass side so duals wont hang down low on that side which looks bad. orig 64-66 A V8 throttle cable assy (3 holes) or a common 70's one & redrill 2 holes EDIT 15" rims up front will likely give you fitment probs unless you use real low profile tires Last edited by RapidRobert; 11/27/11 08:45 PM. live every 24 hour block of time like it's your last day on earth

Re: 360 freshen up -- feedback needed [Re: 340duster340] #1122615 11/27/11 08:46 PM 11/27/11 08:46 PM
Joined: Dec 2010 Posts: 1,035 Missouri U.S.A. 7 71yelladustr super stock
71yelladustr super stock 7 Joined: Dec 2010 Posts: 1,035 Missouri U.S.A.	You cant use too big of a cam with the converter an compression. I used a MP purpleshaft 268/272 .455 lift cam in mine with an LD340 intake. It ran really strong and very docile. Had J heads w/ 1.88 intake valves mildly ported. Shortblock was stock. The factory 340 intake is fine but a LD340 or performer RPM airgap would be better. Dont waste your money on a Performer as it is no better than a stock 340 manifold. Nothing wrong with 308 heads. Port match them and clean up the bowls. cheap and easy HP. 750 holley carb or TQ will work nicely on this engine. 392 gen III hemi on E-85 727 trans Dana 60 10.02@134

Re: 360 freshen up -- feedback needed [Re: 340duster340] #1122616 11/27/11 08:46 PM 11/27/11 08:46 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: it will be a daily driver/weekend car. to make long story short, a friend left it to me after we passed away. for now the rear will be 8.25 so i can get the large bolt pattern, unsure of gears, but can change them as needed or ideally get an 8.75 rear. sticking with stock wheel wells, but will be running 15 inch rims. I assume you want a hyd cam... the comp X series are pretty fair... yes change the springs to what matches the cam... if it was me I would do a valve job... I would also do at least a bowl blend port job but I do all that stuff myself (I have the equipment)

Re: 360 freshen up -- feedback needed [Re: MR_P_BODY] #1122617 11/27/11 09:05 PM 11/27/11 09:05 PM
Joined: Jan 2003 Posts: 4,323 NY NY 3 340duster340 OP master
340duster340 OP master 3 Joined: Jan 2003 Posts: 4,323 NY NY	yes would like to be hyd cam, as i plan to sell the adjustable rockers from the 273 to put towards the build. i have both power and manual steering so if a problem i can go manual box for steering. for exhaust, i know duals will require some modification. going to do that last, for now i want to get it running/driving/stoping. will be my winter project. 1966 Dart GT ...down to only 1 mopar for the first time in 15 years!

Re: 360 freshen up -- feedback needed [Re: MR_P_BODY] #1122618 11/27/11 09:07 PM 11/27/11 09:07 PM
Joined: Jan 2003 Posts: 4,323 NY NY 3 340duster340 OP master
340duster340 OP master 3 Joined: Jan 2003 Posts: 4,323 NY NY	Quote: .. I would also do at least a bowl blend port job but I do all that stuff myself (I have the equipment) what equipment is required? i have plenty of cores to practice on. have compressor and air tools, but not sure what grind heads and roll pads i would need to port. i think mopar makes templates or are those just for B/RB?

Re: 360 freshen up -- feedback needed [Re: 340duster340] #1122619 11/27/11 09:23 PM 11/27/11 09:23 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: Quote: .. I would also do at least a bowl blend port job but I do all that stuff myself (I have the equipment) what equipment is required? i have plenty of cores to practice on. have compressor and air tools, but not sure what grind heads and roll pads i would need to port. i think mopar makes templates or are those just for B/RB? I have valve grinding equip ... but for the port work you need a die grinder(electric or air) and a cutting burr... maybe finish it with tootsie rolls... all you really need to do is blend in the seat to the bowl and clean it up... blend in the intake port(gasket match) and clean an bad trees limbs out of the runners if you want to get that far into it... bowl blending can take a couple of days if your a rookie

Re: 360 freshen up -- feedback needed [Re: MR_P_BODY] #1122620 11/28/11 07:23 AM 11/28/11 07:23 AM
Joined: Mar 2003 Posts: 571 Beaverton, OR, USA Alikazam super gas
Alikazam super gas Joined: Mar 2003 Posts: 571 Beaverton, OR, USA	I would thinking something in the comp XE268 range would be ideal. Lower lift and 220-230 duration dual pattern. Good luck!

Re: 360 freshen up -- feedback needed [Re: Alikazam] #1122621 11/28/11 12:51 PM 11/28/11 12:51 PM
Joined: Jan 2003 Posts: 16,123 Grand Haven, MI patrick I Live Here
patrick I Live Here Joined: Jan 2003 Posts: 16,123 Grand Haven, MI	lunati voodoo 60402, use your 340 intake manifold, comp #901 or hughes 1110 valve springs 1976 Spinnaker White Plymouth Duster, /6 A833OD 1986 Silver/Twilight Blue Chrysler 5th Ave HotRod SOLD!* 2011 Toxic Orange Dodge Charger R/T 2017 Grand Cherokee Overland 2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)

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