thanks for the info guys, i have a 361 im going to tear apart, i tihnk ill use the crank, and maybe pistons, "its been recently rebuilt" so i dont know how they are and use 390 rods, edelbrock rpm power package, intake, cam and carb, ported C9AE 390 heads, arp hardware, longtube headers, ford electronic dizzy, and hopefully push atleast 375hp at 6,500 rpm.

 

egoman i see your building one just like mine, i dont know your purpose but mine was to make a screaming 360, everyone says the 360 is slow and powerless, but me and a buddy got thinking of a 360's potential, big bore short stroke with the right combination of parts could make a high rpm high hp motor, with not a lot of money involved i mean 360 cranks are dime a dozen and can handle 6,500+ rpm.

 

Yea same idea hear.. I wanna get as close to 400 as possible or more. I will eventually go to a single plane roller cam setup to maximize it if i can get the cr to 10:1.

 

How do those 361 rods look for beefyness?? This thread has me interested, Ive always wanted to build a 360 screamer but all the 360's Ive had really didn't like being over 5000rpm to many times, lol

 

who says the 360 is a dog?? My 1st 360 was a virgin stock motor and it could hit 6000+rpm. As far as acceleration goes I'm pretty sure the 360/390 are almost equal because of the extra wind the 360 has with stock components being the same as the 390 as far as cam+intake go. 1/4 mile et's have fallen between 16-18 with both motors using same gears, pretty much the same truck....3/4 tonne HD special and a 3/4 tonne camper special, broke into the high 15's with the 390 though.....

360 noticibaly revs faster tan the 390

 

The biggest problem you guys are going to have with 360's is the long rods. They dont like being above 6000rpm too many times. After that they like poking holes in the block.

According to Steve's book, there was a large cross-section long rod in the 1960 352hp engine. Getting it is another story.

But go for it, I'd like to see a use for all those 352 / 360 cranks laying around!

OBTW, I think the 361 long rods are the same as the 360 rods.

 

my build is going to consist of the following-
D4TE fe std block
stock 360 crank
390 rods
361 pistons
ported and pollished C9AE heads
rpm intake
rpm cam
rpm 750 carb
ford electronic dizzy
power tower coil
8mm wires
longtube headers with 3in dual exhaust with glasspacks
upgraded valvetrain
arp hardware

all in all i hope to be able to turn 7,000 rpm

 

That's all good, but why aren't you using D2 or D3 heads? They'll get you a higher compression ratio and hardened exhaust valve seats.

What cam?

 

As I had started a similar thread; Egoman directed me here. I am glad to see I'm not the only one with the belief, of the potential power of the 360.
In comparison, the 289 is a much stouter engine when built equally to the 302.
My day turned sour when I found major scouring in #3 cylinder and loss of compression in 4 and 8; I couldn't wait any longer to do this particular build.
I am having a 390 built by a local shop and I should have it running in my 71 crew by Mon. the 30th.
I am still following this thread, as I have another 360 in my 70' crew . I hope you guys come out roses in the end.

(edit to my profile to come.)
200th post
Robert P.

 

i guess i could use D3 or D4 heads i have a set of both, i just thought i heard somewhere the C9 heads were better for porting oh by the way im useing the edel rpm cam.

 

try this site for some interesting hp combinations http://www.amotion.com/ffe.html

 

Hrm, I've never heard of that. What I do know, is that the 360 heads (D2 or later) will have smaller combustion chambers boosting compression. In a 360 you need as much as you can get.

Go cc the chambers on both heads. I think you'll see what I mean. I cant really see where they'd be thicker.

One interesting thing, my book doesn't even show C9's. You're sure they're not C6's?

A note on the cam, according to DD2k, with a 9.85:1 compression 360, with ported D2 heads, the Crane 941 makes a lot more torque and the about the same hp, at a lower rpm, as the Edelbrock RPM cam. IMO the 941 is a much better cam.

Edit:
67-352: 360's and 390's use different rods. Basically there are 2 different length rods in the FE world. The short rod, at 6.488", was used in 390's, 391's, 410's, 427's and 428's. The long rod, at 6.54", was used in 352's, 360's, and 361's. The long rod is somewhat weaker than the short rod. There are also various versions of the short rod, like the lemans rod and the rare nascar rod. Good luck finding either of those. One can use the different rods to affect compression ratios, but at high rpm you have to watch the long rods, since they tend to stretch after repeated 6000rpm blasts and eventually fail. That's what I was commenting on.

 

roger that rusty thanks for the info, after I posted i did my homework had a nagging suspicion I was wrong on that one, should have known shorter stroke+ same block=longer rod duh.

 

Or bigger compression height on the piston.

But yeah, we all started somewhere.

 

i know the heads i was talking about are C9AE with some other #'s after that, but i do have some D3TE heads ill use those in my build for porting.