390 Cam Choice

390 & up cid Monster Motors

390 Cam Choice

Postby Sabatona » Fri Feb 03, 2017 7:15 pm

Hi Guys:

I am planning to replace the stock cam in my 66 390, and I am wanting some advice as to what the best cam might be for my application.

Gas mileage is not an issue.

Vehicle specs

66 Cyclone Convertible

4 Speed

3:25 closed rear

stock intake, exhaust manifolds. Dual exhaust.

bored .040 over

10:1 compression

AC

Wanting a lope type idle, and of course a good range of power.

I have been looking at Comp Cams 270H and 275DEH. Not sure if the dual energy is a good way to go in an FE or not.

Wanting a cam that will increase power, have a lope idle, but will be reliable.

Any and all help/advice would be appreciated. Len
Sabatona
 
Posts: 39
Joined: Sat Jan 07, 2017 5:47 pm

Re: 390 Cam Choice

Postby popscomet » Fri Feb 03, 2017 10:36 pm

I have a 1963 390,with 63 406 heads and a 428 factory alumn police intersepter 4bbl ,intake,with a pointless dist with a 600 holly carb,in a 1966 ford PU ,3spd tranny with 3.50 rear gear,with dual exhaust and mufflers from a muffler shop,TOmorrow ,I will do my very best to find the cam card and get the info to you...,this cam has a sweet sound, and it does real good in this pick up,I pull a race car a lot with this truck,best I recall this cam starts working right off idel up to 5500 rpm's,,it has never stopped pulling for me..I love it!! this may work for you and it may not..but if all possible,I'll find the cam card and get back to you,tomorrow...........pop
Image
pop/glenda
popscomet
 
Posts: 7617
Joined: Sat Jan 01, 2011 10:19 pm
Location: Jacksonville, Arkansas

Re: 390 Cam Choice

Postby Lip Ripper » Sat Feb 04, 2017 5:28 am

I'm running the 270H in my 66 Cyclone conv. It pull's hard and I shift at 5700 rpm's. A cam isn't going to do anything but sound different unless you get rid of those choke hold manifold's and get a better flowing intake. And I think the cam in the 390 GT is the same as the Cobrajet cam so it isn't stock per se.


Let me go find my video on my header install. You'll get an upfront sound check of the 270H.

Here; https://youtu.be/Iu4hz0HkgE4
66 Cyclone GT; 245/60R15's on 15x8's and 215/70R15's on 15x7 Magnum's.
There's nothing like the sound of a pushrod V8 singing at the top of her lung's.
Lip Ripper
 
Posts: 1413
Joined: Wed Jun 06, 2012 4:47 am
Location: Lake Placid, Florida

Re: 390 Cam Choice

Postby Sabatona » Wed Feb 08, 2017 5:58 pm

Hi Guys!

Does any one else have a recommendation?

I e mailed Comp Cams and they recommended a 268H (.494 lift, 286 duration).

I did some reading on line and read that the 390 benefits from a dual cut cam as it performs better with more lift/duration on the exhaust side so it can breath better.

Based on this, I was looking at the Comp Cams #275 DEH.
Lift: Intake .515, Exh .541
Duration: Intake .298, Exh .313

Would be great to hear if anyone has actually used the 275DEH or the 268H.

Also found quite a few people that went with the 280H (5.30 lift, 230 duration).

Any info would be greatly appreciated as I need to decide and order the cam this week.

Thanks! Len
Sabatona
 
Posts: 39
Joined: Sat Jan 07, 2017 5:47 pm

Re: 390 Cam Choice

Postby vicegrip » Thu Feb 23, 2017 7:36 am

You will need adjustable rocker arms for the last two cams. If your in an out aren't improved,it might sound mean but performance gains will be compromised. You might try Brent Lykins or Blair Patrick for a cam choice.
vicegrip
 
Posts: 179
Joined: Tue Jan 08, 2013 11:12 am

Re: 390 Cam Choice

Postby cairnscomet » Wed Mar 01, 2017 2:50 pm

Hi
I have a comp 268h in my 390 ranchero ,FPA headers, alloy heads . Nice cam very streetable but a little bit tame 250hp at the wheels,I would go a 270 if I had to do it again
1964 Comet Caliente Convertible 302 4sp
1966 Ford Ranchero 390FE - daily driver
1923 408W T-Bucket
cairnscomet
 
Posts: 16
Joined: Tue Jan 19, 2016 8:02 pm
Location: Cairns QLD Australia

Re: 390 Cam Choice

Postby Sabatona » Mon Mar 06, 2017 6:17 pm

Hi all.

Thanks for the information.

I ended up going with the Comp Cams XE262H dual pattern cam: http://www.compcams.com/Company/CC/cam- ... d=938&sb=0

Slightly more lift/duration on the exhaust side, should help it breath.

Went with Crane Lifters and Comp Cams valve springs. Read that the Comp lifters are noisy, Cranes are not...

Also went with a set of Speed Pro forged, flat top pistons: http://www.ebay.com/itm/171057544936?_t ... EBIDX%3AIT

Motor is being assembled now, hope to have it back in the car by the end of march/early april.

Doing a complete detailing of the engine compartment and accessories at the moment, photos to follow....
Sabatona
 
Posts: 39
Joined: Sat Jan 07, 2017 5:47 pm

Re: 390 Cam Choice

Postby popscomet » Mon Mar 06, 2017 6:55 pm

it's all in the detail....pop
Image
pop/glenda
popscomet
 
Posts: 7617
Joined: Sat Jan 01, 2011 10:19 pm
Location: Jacksonville, Arkansas

Re: 390 Cam Choice

Postby Sabatona » Sun Apr 30, 2017 5:56 pm

Hi Guys:

Here are a few pics of the rebuilt and restored 390 4V:

Image

Image

Image

I ended up going with forged flat top pistons as well.

Motor runs great with the XE262H and crane lifters!
Sabatona
 
Posts: 39
Joined: Sat Jan 07, 2017 5:47 pm

Re: 390 Cam Choice

Postby fryedaddy » Sun Jul 09, 2017 1:56 pm

if you want to go bigger on your cam later,i ran a 282 hyd comp cam to work and back for 8 years 18 miles each way,gave it to my dad when i went to a 292 and he still has it in his 66 gt fairlane show car.these are all still streetable cams and are really quiet small in the big block world.jmo
Image

fryedaddy
User avatar
fryedaddy
 
Posts: 510
Joined: Sun Nov 02, 2014 11:40 pm
Location: east tn


Return to Big Block V-8 Performance

Who is online

Users browsing this forum: No registered users and 1 guest