Camshaft Selection

[Sixty_Six_Stang]

Hello inline friends! Its been awhile

Well a little background on my car/motor. I have a 1966 Mustang with the 200ci 7 main bearing block, I had it rebuild by a less than reputable shop and within 7000 miles I lost compression in my 5th and 6th cylinder. After removing the motor and disassembling it I discovered that the piston collars on the 5th and 6th pistons had broken. So I decided that this was a good opportunity to have a little fun which include a valve job, viton positive seals, polished crank,cleaned and honed block, new cam, rod, and main bearings. Then I thought this would be a good time to get a new cam. After talking to my friend(auto mechanic and fellow ford inline enthusiast!) he suggested that I get a classic inline 264/264 108 hydraulic cam since I still have stock exhaust and carburetor. He also mentioned that I could get a 264/264 110 or even a 264/274 if I get a higher stall converter and plan on getting a new exhaust and carburetor in the near future.

So this is my dilemma and I'm not sure which cam I should select.My main concerns are If I will still have enough vacuum to have my power brakes without installing a vacuum reservoir. Would I need the 302 springs? I would also like to keep my stock converter.

What are your thoughts? Gas mileage is a slight concern but I have a separate daily driver but I do like to go on long cruises. I'm leaning towards the 264/264 110 since I want a "loopier" idle and more mid-range power for the highway. Exhaust and carburetor are in the future plans along with a multi-spark ignition.

Thank you in advance for any input, I think I did my homework on this subject but I am not comfortable on making a choice yet.

 

[wsa111]

With a stock engine i would install an Isky 262 super camshaft with valve springs to match the camshaft.
Do not use the ford 302 springs cause they do not have a vibration damper in the spring.
The clay smith 264 is a little wilder than the Isky. If you have a stock torque converter i would advise that cam with a 112 L/C. I would get the springs the grinder recommends.
After that you will need some distributor mods cause you already broke ring lands already from too much advance. Bill

 

[rbohm]

i agree with the 112LC, but i would suggest the 264/274 clay smith cam. you need the exhaust flow which the dual pattern cam will help with.

 

[Sixty_Six_Stang]

How will my car run with the 264/274 cam with my current stock setup? Classic inlines says that I would need solid lifters for the 264/274 112 LS. I probably wont get exhaust or a new carb for another year. Also should I get a 110 LS to split the difference between 108 and 112? I would still like some low end grunt. Also which springs should I get since the 302 spring wont work and I'm worried about valve float with the stock springs.

 

[wsa111]

If your engine is basically stock as far as compression & components as i said before you would be much better with the 262 Isky camshaft with Isky valve springs for your combination.
The 262 camshaft has a 109 L/C but with the shorter duration that L/C will be fine.
Advance the camshaft 2 degrees.
I run that camshaft in my engine & it put out 139 RWHP with my combination.
You don't need any more duration with your engine than that cam has. If you had 9.5 or more compression then the 264 camshaft @ 112 L/C would work, but you don't have that.

 

[Sixty_Six_Stang]

Thank you wsa111, where would be the best place to purchase the Isky Cam? Do they have a valve spring and hydraulic lifter package deal that you know of?

 

[wsa111]

Summit Racing or Jegs. They all carry the can, lifters & springs. Bill