Re: 360 LA Build Suggestions
[Re: Pntastar69]
#2430439
01/07/18 12:49 PM
01/07/18 12:49 PM
|
Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
|
Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
|
for sure stroke it. 4" cranks adequate for moderate performance are reasonable these days. No one I have ever spoken/dealt with that has went this route has ever regretted it (& they say they would never go back to 360 cubes). EQ mag heads.
live every 24 hour block of time like it's your last day on earth
|
|
|
Re: 360 LA Build Suggestions
[Re: Pntastar69]
#2430652
01/07/18 07:03 PM
01/07/18 07:03 PM
|
Joined: Jan 2005
Posts: 4,450 Michigan
MarkZ
Worthy
|
Worthy
Joined: Jan 2005
Posts: 4,450
Michigan
|
First question: what's the budget? Second question: are you willing to redo the short block?
At .110 in the hole with open chamber heads the compression will be extremely low. As mentioned, stroke it if it fits in your budget. I would forget about the 915 heads. Open chamber really kills it and without any additional work 2.02 valves will gain you almost nothing.
A good set of heads and a cam change will get you close to your HP goal, but a stroker motor will give a broad flat torque curve. For a 100% street machine, torque is King.
1987 Fifth Avenue - 512/518/D60
|
|
|
Re: 360 LA Build Suggestions
[Re: Pntastar69]
#2430682
01/07/18 08:17 PM
01/07/18 08:17 PM
|
Joined: May 2006
Posts: 2,046 ky.
kenworth_goose
top fuel
|
top fuel
Joined: May 2006
Posts: 2,046
ky.
|
You can build a 400-450 hp 360 with the stock crank and stroke for 3500.00 in parts. No need to get crazy and stroke it. In my opinion it's not worth the hassle. You won't get any more power out of it for what you want. Stock bore block KB 10.5 to 1 pistons 273 rods and no you don't have to balance anything your heads Purple shaft 508 adjustable rockers windage tray single plane edlebrock intake 750double pumper holley, you will need to put bigger jets and squirter in it preformance dist I've built 4 or 5 of these that are still running today after several years of use and abuse. The first one I built made 434hp at the crank, didn't balance anything and no shakes. It regularly seen 7400 rpm shifts and is still a beast on the street. ran 12.40's on street tires, 904 and stock convertor and 3.91's
Last edited by kenworth_goose; 01/07/18 08:18 PM.
|
|
|
Re: 360 LA Build Suggestions
[Re: Pntastar69]
#2431161
01/08/18 05:43 PM
01/08/18 05:43 PM
|
Joined: Jan 2011
Posts: 15,931 Central Florida
larrymopar360
Stud Muffin
|
Stud Muffin
Joined: Jan 2011
Posts: 15,931
Central Florida
|
One of the best engines I ever had was the Mopar Peformance 360 crate engine that was rated at 300hp/375tq. I wish they could still offer that engine. Smooth idle cam, roller setup, and obviously underrated in both hp and torque, according to seat of the pants and dyno tests in magazines. The assembly quality was questionable but what a great engine! I'm sure those specs are still available online. I'd love to build one again. 360 block, magnum heads, M1 intake (I might consider trading the intake for a air gap).
I had two of those and they made great torque yet smoooooth idle, which made great sleepers in my old boxy Diplomat Police cars. In my Dippys, with 3.23 gears, sure-grip rears, 235/70/15's and weighing in at 3850 pounds, it would roast the tires all day long if I wanted to, and pulled hard past 100mph when I wasn't comfortable pushing the car anymore.
Facts are stubborn things.
|
|
|
Re: 360 LA Build Suggestions
[Re: larrymopar360]
#2431212
01/08/18 07:56 PM
01/08/18 07:56 PM
|
Joined: Jan 2003
Posts: 16,376
dogdays
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 16,376
|
You're missing only two things from achieving your goal: Flow and compression.
You have already spent $$ on the block, crank and rods, replace the pistons with some that are same or less weight than you have now so balancing is easy if the weights are different. compression height should put piston at or near zero deck.
Purchase those pistons AFTER you buy a new set of smallblock Sidewinder heads. Get the pistons so you have roughly 10.5:1 compression.
Everything else remains the same.
R.
Last edited by dogdays; 01/08/18 07:57 PM.
|
|
|
Re: 360 LA Build Suggestions
[Re: Pntastar69]
#2431536
01/09/18 12:06 PM
01/09/18 12:06 PM
|
Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
|
Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
|
If you can get .040" quench & maintain an acceptable SCR for your choice of octane I definitely would. More power/more ping resistance/less advance needed.
live every 24 hour block of time like it's your last day on earth
|
|
|
Re: 360 LA Build Suggestions
[Re: Rob C]
#2432238
01/10/18 03:38 PM
01/10/18 03:38 PM
|
Joined: Jan 2011
Posts: 15,931 Central Florida
larrymopar360
Stud Muffin
|
Stud Muffin
Joined: Jan 2011
Posts: 15,931
Central Florida
|
400 hp @ 360 cubes? Copy the 360/380 create engine. Which dynos over 400hp.
Yes, that was a good one too, along with the one I mentioned if you want something smoother idling, more affordable, and more sleeper-ish and stock sounding.
Facts are stubborn things.
|
|
|
|
|