Dartswinger70
Well-Known Member
But aren't 318s supposed to be cheap...? 
Cams for 318's
- Thread starter toolmanmike
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sireland67
Well-Known Member
Price of pistons is pretty cheap, for the performance they give back.
My new motto: If the world would just add a 4 barrel, dual exhaust and recurve the distributor and leave it at that, the world would be a better place. If you want power, build a 340, 360, or a stroker.
Anyone familiar with the hydraulic roller CTA (C=conventional shaped nose, T=Torque and A=asymmetrical) lobes that Bullet offers?
Master Adv 050 200 Lift Lash Type
HR263/353 263 212 137 0.3530 0.0000 CTA
HR269/353 269 218 142 0.3530 0.0000 CTA
HR270/357 270 219 143 0.3570 0.0000 CTA
Master Adv 050 200 Lift Lash Type
HR263/353 263 212 137 0.3530 0.0000 CTA
HR269/353 269 218 142 0.3530 0.0000 CTA
HR270/357 270 219 143 0.3570 0.0000 CTA
Dartswinger70
Well-Known Member
Did anyone ask Uncle Tony? He'd say "Hughes Whiplash" cam I bet...
For a basic 318 that should be a good one. Thanks for posting. Did you notice an increase in performance? How does it idle? Videos? Did you add anything to the combo? What is your combo? Sorry, a lot of questions but they will be asked I'm sure.
Dartswinger70
Well-Known Member
I bought the SUM K 6901 a few times and I like it for a street engine.
idles like stock with just a hint of lope, awesome vacuum, lots more midrange. It is just a stock 318 with an old holley street dominator intake and an Eddy 600 carb, but runs very strong
These are Ultradyne lobes. High lift for such a short duration.
FWIW, I'm looking at a cam for my '86 d100 with 9:1 LA318, long tube headers, '70s 360 4v intake, 3.55, and 904 lockup. Out of Kens flat hydraulic grind patterns, I've narrowed it to #1530 with the note "xe4-254". 210/218@.050", 254/262, .447/.462"with 1.5. Changing the lsa to 108 from 111 (from DV's formula) and icl from 107 to 100 (for a 47 ivc to get approx 8:1 dynamic with 9:1 static). Overlap is 42.
smlblk318
Well-Known Member
Can a 340 Cam and lifters be used in a 318? I've got an intermittent tick on the top end and think I have a lifter going bad and thought about putting the higher lift 340 cam setup in instead of the stock replacement. Specs are .429 lift on the 340 and .372 lift on the 318
It's a little big, but yes.
If you're talking about Summit K6900, my results are the same as yours. Stock bottom end and heads 74 318 with duals off manifolds. Performer intake with 600 Eddy. Pulls 2.76 gears fine although I'm stepping up to 3.55 in the near future.
I helped a semi local friend who is also a forum member years ago in choosing a cam for his 318 in a Dodge D100. We ended up using the Summit 6901. It ran very well, especially when we got the 383 distributor out and a 318 distributor back in it. lol
I'd change your valve springs also, while you are at it, to get the full benefit of that cam. Also a double roller timing set.
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i've done it and loved it. I assume you have at least a 4bbl of some sort on top and dual exhaust? it will run ok without them but they really make the combo nice
i'll echo the above and say go for it.
you don't absolutely have to upgrade the springs but it would be a good idea. if you're there do a double roller timing chain. it's cheap insurance. and if you're feeling frisky get one that you can advance a few degrees.
you don't absolutely have to upgrade the springs but it would be a good idea. if you're there do a double roller timing chain. it's cheap insurance. and if you're feeling frisky get one that you can advance a few degrees.
smlblk318
Well-Known Member
I do have a 4bbl.and dual exhaust. Toying with the idea of putting headers I bought a few years ago on as well. What criteria would need to be met if I was to transplant a used Cam and lifters from my spare 318 with unknown history to save a little cash? Previous owner said he pulled it due to low compression on a cylinder or two.
well, was the lifters kept per lobe? If not, I'd use new lifters with it and do the cam break in. I might do the cam break in procedures anyways even if the lifters are supposed to be in order.
smlblk318
Well-Known Member
Cam and lifters are still in the spare engine. I would be putting in a new timing set while I'm in there. Just wasn't sure if my spare parts would be a viable option
sure, they are viable if they are good condition. Keep those lifters on the exact same lobes they are on now.
Specs?Cam's for 318
TRW TP-141.
Not made anymore. FYI
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