Moparts
360 Stroker info please...
Posted By: MNobody
360 Stroker info please... - 08/18/09 11:25 PM
I want to do a budget 360 stroker and get around 500 hp if possible on pump gas. I know i need a 4" crank, what are decent rod's and what length? Will a 318 cam fit a 360 block and is a .528 solid a good choice? Any clearance issues with the block and a stroker assy? I also have 2.02 J-heads and adj rockers, i know they aren't the best choice but i gotta use them. I have a single plane weiand accelerator intake, 750 holley mech secondary carb, and MSD distributor from my 318, will the dist fit a 360? Sorry for all the questions, any help would be appreciated.
Posted By: RapidRobert
Re: 360 Stroker info please... - 08/18/09 11:53 PM
a day or 2 ago there were 2 good rod recommendations for reasonable money one was scat & the other was a rebuilt one w Milodon bolts iirc(cant remember who) & they'll be 6.123". The dist will fit & I haven't got that far but I believe no clearance issues.
Posted By: Neil
Re: 360 Stroker info please... - 08/18/09 11:57 PM
Plan on notching the block at the bottom of each bore where the rod bolts are likely to hit. Some rods clear and some don't, but always check to be sure.
Posted By: MNobody
Re: 360 Stroker info please... - 08/19/09 12:00 AM
Thanks for the info Robert, i forgot you were building one. I need Piston ideas too, something in the 10-10 1/2 comp range.
Posted By: MNobody
Re: 360 Stroker info please... - 08/19/09 12:08 AM
How much clearance do they need? Thanks.
Posted By: RapidRobert
Re: 360 Stroker info please... - 08/19/09 12:08 AM
Mine will be a daily driver & I'm using some badger cast flattops that I already had but if I didn't have them probably the old standby KB & their not cheap either. I would get quench so you can run a higher CR on your intended fuel
Posted By: Neil
Re: 360 Stroker info please... - 08/19/09 12:13 AM
Quote:
How much clearance do they need? Thanks.
I ground on mine enough so that a toothpick could slide inbetween the rods and the block. The total amount needed to be ground away is pretty small.
Also make sure you buy radiused connecting rod and main bearings.
http://www.moparts.org/Tech/Archive/smallblock/16.html
Posted By: 70AARcuda
Re: 360 Stroker info please... - 08/19/09 12:30 AM
scat i beam will fit without any grinding...
Posted By: Posest
Re: 360 Stroker info please... - 08/19/09 12:35 AM
I went with scat rods and an Eagle crank, KB pistons and had to have the block decked to make 10.5:1. 64 cc chambers on the heads. I did not have to do any notching to clear the rod bolts. Everything off of the 318 will bolt onto the 360, except the one motor mount is different. I went with a split duration Voodoo cam.
Posted By: MNobody
Re: 360 Stroker info please... - 08/19/09 01:39 AM
Thanks for the info guy's, i think i read that j heads are about 72cc chambers so hopefully i can find pistons that will work without alot of work to the block.
Posted By: Neil
Re: 360 Stroker info please... - 08/19/09 01:46 AM
Look into the Wiseco Pro Tru line for pistons. I'm not sure if they have the compression ratio you need, but they are a pretty good deal for the money.
Posted By: Crizila
Re: 360 Stroker info please... - 08/19/09 01:59 AM
It will be very difficult to reach your 500HP goal with those heads,even fully ported - and that intake manifold won't be much help getting there ether. I'd say 400 to 425 with the correct cam choice - maybe.
Posted By: MNobody
Re: 360 Stroker info please... - 08/19/09 02:13 AM
Yeah i know the heads aren't the best but i can't afford new ones now, aluminum heads will be a future add on. I'm open for suggestions on intake and cam ideas? Thanks.
Posted By: krw71ragtop
Re: 360 Stroker info please... - 08/19/09 02:51 AM
This cam along with rpm air gap intake.
Posted By: Posest
Re: 360 Stroker info please... - 08/19/09 03:26 AM
That is real close to the cam I have and I also run the Air gap with a 4150 carb. Expect idle to smooth out around 1200+ with that cam.
Posted By: MNobody
Re: 360 Stroker info please... - 08/19/09 03:32 AM
Cam manufacturer? what kind of power are you getting and what combo are you running please, Thanks.
Posted By: Anonymous
Re: 360 Stroker info please... - 08/19/09 07:52 AM
500 h.p. 408 stroker on a budget firstoff whats your budget???...
Posted By: Posest
Re: 360 Stroker info please... - 08/19/09 12:53 PM
Lunati 60405 - Lunati Voodoo Camshafts
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* LUN-60405
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Camshaft, Hydraulic Flat Tappet, Advertised Duration 284/292, Lift .533/.552, Mopar, Small Block, Each
Part Number: LUN-60405
Estimated Ship Date: 9/7/2009
Have not had it on a dyno but it sure runs strong. Still working on a few things before I make it to the track.
Posted By: MNobody
Re: 360 Stroker info please... - 08/19/09 02:23 PM
I'll keep that in mind thanks for the info. I'm set up with a solid cam right now, I'd like to stay with one if anyone makes one that will work with my combo or i'll be buying lifters and rocker assy's.
Posted By: MNobody
Re: 360 Stroker info please... - 08/19/09 02:25 PM
Quote:
500 h.p. 408 stroker on a budget firstoff whats your budget???...
Cheap as possible but still dependable, it will be street driven but i want her to run 
Posted By: patrick
Re: 360 Stroker info please... - 08/19/09 06:31 PM
Quote:
Thanks for the info Robert, i forgot you were building one. I need Piston ideas too, something in the 10-10 1/2 comp range.
with 72cc J heads, KB forged flat tops will be 10.5:1 with a fel pro 8553PT gasket (.054" thick) will net you 10.5:1
the SCAT I beams probably won't need block clearancing. stockers will.
Posted By: Scamp408
Re: 360 Stroker info please... - 08/19/09 11:46 PM
Just buy mine when I get ready to do the new motor.
Posted By: MNobody
Re: 360 Stroker info please... - 08/19/09 11:53 PM
Quote:
Quote:
Thanks for the info Robert, i forgot you were building one. I need Piston ideas too, something in the 10-10 1/2 comp range.
with 72cc J heads, KB forged flat tops will be 10.5:1 with a fel pro 8553PT gasket (.054" thick) will net you 10.5:1
the SCAT I beams probably won't need block clearancing. stockers will.
Cool Thanks 
will the Rod's out of my 318 work in the 360?
Posted By: patrick
Re: 360 Stroker info please... - 08/20/09 09:49 AM
if it's a 73 or later 318, the rods are identical to 360 rods...you'll need to clearance the block. shoot for ~ .060" clearance between the rod bolt and the bottom of the cyl
Posted By: MNobody
Re: 360 Stroker info please... - 08/20/09 04:18 PM
Cool it's a 74 motor but the rods aren't stock, i think they are TRW's.
Posted By: rt66jim
Re: 360 Stroker info please... - 08/20/09 07:06 PM
Well this is JMO. My 416 has Wiseco pistons zero deck hgt. 72cc W2's. CR is 11.2. I believe that the 528 cam is around 254*@.050, This should work real good in a 408. The long stroke eats up alot of duration. How loose will the converter be? That intake will work very well with those heads. On my old 340 that manifold was faster the either a Holley street dom or the strip dom. The carb is good until you get some good heads. Then they really like a 950HP. I would use at least 1 3/4" tube headers as well. You will like the TQ they make. Jim
Posted By: MNobody
Re: 360 Stroker info please... - 08/20/09 07:14 PM
Thanks for the info
Right now i have a 4200 stall with 3:91 gears, i plan on having the converter redone to the stall i need. I'm guessing in the 3000 range?
Posted By: rt66jim
Re: 360 Stroker info please... - 08/20/09 07:20 PM
My cam is
272@050 610 lift. I have a TA 4200 convertor. It flashes 5400. If yours is a good converter. It might be very close as is. Are you going to use the cast or forge crank? Jim
Posted By: MNobody
Re: 360 Stroker info please... - 08/20/09 07:28 PM
Quote:
My cam is [Email]272@050[/Email] 610 lift. I have a TA 4200 convertor. It flashes 5400. If yours is a good converter. It might be very close as is. Are you going to use the cast or forge crank? Jim
I'm thinking cast steel for the crank to keep the price down as long as it will hold up ok. I'd like to stick with a solid cam, either the one i have or a bigger one if it will work. Here's the specs on the .528 solid i have. Not sure what the converter flashes at not but when footbraking the tires break loose about 3800 rpm. Thanks.
Cam Style Mechanical flat tappet
Basic Operating RPM Range 2,800-7,000
Intake Duration at 050 inch Lift 241
Exhaust Duration at 050 inch Lift 241
Duration at 050 inch Lift 241 int./241 exh.
Advertised Intake Duration 284
Advertised Exhaust Duration 284
Advertised Duration 284 int./284 exh.
Intake Valve Lift with Factory Rocker Arm Ratio 0.528 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.528 in.
Valve Lift with Factory Rocker Arm Ratio 0.528 int./0.528 exh. lift
Lobe Separation (degrees) 112
Intake Valve Lash 0.028 in.
Exhaust Valve Lash 0.032 in.
Posted By: rt66jim
Re: 360 Stroker info please... - 08/20/09 07:42 PM
Well that is a pretty wide LSA for a stroker. Mine is 108. Will this be street driven alot or mostly strip? I think your converter will work pretty good as is. I would for sure try it before doing anything differnet.
Posted By: MNobody
Re: 360 Stroker info please... - 08/20/09 08:03 PM
The car will be street driven. I know zero about cam's but i want to get the right one in there the first time
If i need a different one i'm open for suggestions but i'm hoping to stay with a solid because i'm already set up for it as long as the lifters and push rods from the 318 will swap over to the 360.
Posted By: rt66jim
Re: 360 Stroker info please... - 08/20/09 08:16 PM
Well I would call a cam grinder you trust or PM member Fast68Plymouth. Dwayne is a Comp dealer and a straight shooter. He can give you much better advice than mine. I would trust what he recommends.
Posted By: MNobody
Re: 360 Stroker info please... - 08/20/09 08:41 PM
Cool Thanks!