hotrod 360
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Posting Guru
Joined: Nov 2003
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From: Iowa
hotrod 360
me and a buddy plan on hotroding a 360 to near 400hp, we got thinking tonight the 360 and 390 arnt that much different why cant you take a 360 and build it just as strong as a stout 390, would a simple cam change, headers, rpm intake, ported stock heads, 361 crank, .030 overbore, electronic dizzy, etc.. do the trick, or is that not enough, how far can you take an FE up in rpm range with a 361 crank, stock rods, 801 cam and beefed up valvetrain. Any thoughts or Ideas on this project. thanks
Postmaster
Joined: Jul 2003
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From: iowa
Hey Steve the FE cranks are good to 6000-7000 rpm is Ford Performance book. The FT are forged cranks from my understanding and would not be a problem. I just recently dicovered how whimpy the 360 rods look. Regardless of what you use make sure it gets arp hardware. 400hp is a lot for a 360! you will need to do a good job on porting the heads to reach this level. I run a dyno test to get an idea of whats capable.
Postmaster
Joined: Jul 2003
Posts: 3,934
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From: iowa
using a 360 with
9.5 cr
headers with mufflers
rpm intake
801 cam
750 carb
stock heads
350hp at 5000 and 5500
with rpm heads it says 426hp and it still has 400hp at 7000rpm. It is probaly possible to pick up 20 to 40hp from porting stock heads depending on what is done.
9.5 cr
headers with mufflers
rpm intake
801 cam
750 carb
stock heads
350hp at 5000 and 5500
with rpm heads it says 426hp and it still has 400hp at 7000rpm. It is probaly possible to pick up 20 to 40hp from porting stock heads depending on what is done.
Last edited by fordeverpower; Aug 22, 2004 at 12:32 AM.
Post Fiend
Joined: Feb 2001
Posts: 6,624
Likes: 8
From: Missouri
The 360 crank is plenty strong enough for 400HP. Due to its smaller throw it is even slightly stonger than the 390 crank. The rods are going to be a problem. I would use 390 or aftermarket rods and get pistons to match. The 360 rods might hold up but I don't like putting parts in my engine that "might" do anything.
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Posting Guru
Joined: Nov 2003
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From: Iowa
i was asking about the 361 crank because i have a complete 361 motor, a complete 360 motor and also a couple complete 390 motors, i know most of you are thinking why not build one of then 390's well i already have a 400hp 390 and want to build a 360 with the same capability's and compare the 2, would i be able to use the 361 crank, 390 rods and pistons, arp hardware, and 801 cam to reach say 7,000 rpm or is that pushing it.
Post Fiend
Joined: Feb 2001
Posts: 6,624
Likes: 8
From: Missouri
The 801 wouldn't get a 302 to 7,000 rpm much less a 360. I am thinking about 5,800 would be the optimal shift point. The edel RPM cam might get it close.
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Thread Starter
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Posting Guru
Joined: Nov 2003
Posts: 1,888
Likes: 1
From: Iowa
ok can someone DD this for me-
stock 360 crank
390 rods and pistons
9.5:1 cr
ported C9AE heads
rpm intake and cam
petronix ignition system
longtube headers with glasspacks
stock 360 crank
390 rods and pistons
9.5:1 cr
ported C9AE heads
rpm intake and cam
petronix ignition system
longtube headers with glasspacks
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Fleet Mechanic
Joined: May 2004
Posts: 1,436
Likes: 0
From: Montana
The problem is in the cr, It will be difficult to get 9.5 because of the rod length this is the build i am currently doing. Im going to napa tonight to get the piston info i need There is a post about 3 pages back where we talked about this. With the 360 crank and 390 rods you need a 1.902 piston height to get 9.5 cr. Im going to check out the .060" over 352 pistons. Ill post the Part# and info tonight when i get it from napa.
Post Fiend
Joined: Jan 2003
Posts: 8,600
Likes: 4
From: Iowa
The pistons you want are 361 FT pistons, they have 1.902" compression height.
Something else you might look into are 1958 332 pistons, they have a 1.953" compression height. The 352 pistons have a 1.825" compression height.
Something else you might look into are 1958 332 pistons, they have a 1.953" compression height. The 352 pistons have a 1.825" compression height.
I think the 332pistons will bring you out to far above the deck I cant remember now.
Fleet Mechanic
Joined: May 2004
Posts: 1,436
Likes: 0
From: Montana
Ok i went to napa and they gave me a part number that was TC2990.....I didnt get much info out of them because it turns out they are dumb. He did give me a number for the service line so i can find out all the info i need (i hope). The listing they use was for a 64-78 361 which doesnt really help unless they are all the same like the 64 which was 1.902. I am unclear as to the "330HD" and where it fits in but 72-74 fits the bill on the CH, i didnt think to ask if there was a different listing for those. He said that It will be an exact OE piston for that year so i assume it will be full skirt...which isnt a problem because we dont have to worry about clearing the crank on the 3.5" crank. So I'm going to call a look into it more and ill let you know.