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Re: biggest stock 318 cam possible?
[Re: moparborn]
#1645850
07/13/14 12:14 PM
07/13/14 12:14 PM
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Joined: May 2003
Posts: 15,487 Florida
scratchnfotraction
I Live Here
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I Live Here
Joined: May 2003
Posts: 15,487
Florida
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Quote:
What is the biggest cam that will go in a stock piston ,302 (188/160 valve)head 1988 318 engine without any clearance issues?
I have run a lunati VooDoo roller cam in my 91/302 headed 318 and now have the Hughes whiplash roller cam.
it has .485/.485 lift with no issues. I run it with comp 901-16 springs. all stock retainers/rockers/PRs/roller lifters.
if it has the exhaust rotators on the exhust side you have to ditch those. they will not take much lift and have coil bind as the spring is shorter.
I recommend the whiplash roller in a stock 318 engine, choppy idle,smoooths out around 1800 rpm and is a very nice street cam for a daily driver. woke it right up as far as HP/performance.
IIRC .500 lift will need valve guides cut for that much lift/coil bind needs measured for sure.
the LA/magnum head don't like much over the .485 lift in stock forum.
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Re: biggest stock 318 cam possible?
[Re: scratchnfotraction]
#1645851
07/13/14 02:22 PM
07/13/14 02:22 PM
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Joined: Jan 2003
Posts: 21,083 Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,083
Niles , Ohio
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We ran Summits cam in at least 3 SB 318s.Never had a problem and they ran good.It really made a difference in my old Ram Charger with 200K on it.Rocky
Chrysler Firepower
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Re: biggest stock 318 cam possible?
[Re: therocks]
#1645852
07/14/14 04:15 PM
07/14/14 04:15 PM
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Joined: Jan 2003
Posts: 16,376
dogdays
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,376
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302 heads run the smaller valves, 1.78, 1.5. Unless you put larger valves in them, that's what would be in a 302 head. The '88 pistons are flattops and are 0.055" down in the hole. I think you can run 0.474 lift but as said above, you will definitely have to cut the valve guides for clearance and get the right springs.
R.
Last edited by dogdays; 07/14/14 04:17 PM.
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