rumblefish question for you?

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rapidtransit340

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Hi Rumblefish,
You gave me some good advice on a 318 build but sadly lost my notes.
I sware my dog ate it or my 2 year old daughter.
Looking for 300-325 horses fairly cheap. nothing wrong with more either.
One question should I reuse my 318 heads or get some later 302 heads if i can. Is their much benefit? Mine would need a rebuild no doubt.
 
Standard heads will get the HP. Good prep on them is the key to it. When you have them rebuilt, tell the machinest your power goals and you want a 5 angle valve job.
For the HP level you seek, this shouldn't be a problem.
 
Are you going to use 360 valves in the head?
 
I wasnt sure.
I didnt know if they were worth rebuilding so I hadnt thought about it. I saw a set of rebuilt 302 heads and it peeked my interest. But am willing to do what is best for the budget build:)
 
Budget is the hardest thing to do somethimes. A set of rebuilt heads is a good idea. Less down time or just simply that fact that there allready done for you. Less time running around, ordering parts, etc......
 
If I used the 302 heads what cam would you suggest and pistons.
I will have to get some headers as well. probably will get the tti.
Plan on doing this build myself. Once I yank my block I will have it checked out.
Car was sitting in a field for a few years with the heads and intake off.
I see some surface rust in all its holes so hopefully it is fixable.
Thanks for all the advice.
 
What gear ratio and tire size are you going with?
 
I don't remember what I suggested before. However, lets start this a new.

I myself, if I was working up a 318 would start with a fresh torque plated bore & honed block and run the flat top KB hyper-U pistons. Along with the head gasket diamentions in mind (.040 approx.), shoot for a 65 cc head chamber with 360 valves @ 1.88/1.60 in a pocket ported head gasket matched to RPM intake manifold.

The cam I'd look at would be a Comp Cam XE262H or similar spec'd cam.
This cam creates alot of torque and is very useful with a Hwy. gear axle ratio.
I beileve this cam will create 350 HP and about 390 Lbs. of torque.

If your running a higher gear axle ratio, (small tire 3.21's - 3.55 - bigger tire & 3.91) you can step up to a 340 cam.

If you have a 4.10/4.30 axle, you could go to a XE274H which works in a 1800- 6000 rpm range. I'd run a 255/60/15 out back and a 2500 stall converter with those gears and cam.
 
Thank you
I am not sure what I have now but 3.55 was what I was planning.
Probably only 14/15" wheels. Want a stock look.
Dont really want a stall converter so something with alot of low grunt.
I have yet to do do a rebuild so need it as id*t friendly as possible.

Would like to use my factory ac as well. Gets warm out here.
 
Here is where it will be going. Note the partially disassembled. Engine. I have mostly been disassembling the exterior.

No rust except a little surface scale above the headliner and upper trunk area
had and will have a white top.
 

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I beileve even with the 340 cam, you can use the stock stall converter without issues.
IDk about the RPM and A/C if the RPM is an issue, then the Performer will have to do.

(Gotta run, ttyl.)
 
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