This is topic Smog legal cam for 347 stroker? in forum Tech Talk at Northern California Ford Owners  .


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Posted by Black88GT (Member # 394) on :
 
Hey guys what cam would be best in a 347 stroker to pass smog? What would be the best cam for power? Thanks for the help!
 

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Posted by threethirty1 (Member # 7814) on :
 
i run tfs 1 in my 331....until i get it smogged..then im getting a custom..but its pretty docile, a good dd cam. But it falls on its face at like 6200. Thats my experince...
 

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Posted by Black88GT (Member # 394) on :
 
Thank you! How would a E cam work in there? Would it pass with it? When you say custom, who does that for you? Does it go by your heads and intake? I havent decided on an intake yet, but Im running GT40 alum heads. Also what compression should I run?
 

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Posted by 2stangs69-91 (Member # 1951) on :
 
you always will be taking a chance with any aftermarket cam. I run a XE274HR comp cams in my 331 stroker with GT40 aluminum heads. It passed the tail pipe emissions test about a month ago. I ran hotter than stock plugs set the timming down to 7 degrees and put in fresh oil. it passed with out a 3 min cat warm up.
 

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Posted by 88MK7Mn (Member # 7689) on :
 
friend of mine has an E cam in his 351w, AFR heads, 24lb injectors. He passed at a test only station without any problems.
 

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Posted by forced331 (Member # 1270) on :
 
"Needacage" has a custom smog legal cam in his 347 that passed smog. I think he went with HTI?
 

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Posted by mikeceli (Member # 8389) on :
 
Hi! I'm new to the forum, but not new to Fords. I bought my first car(1970 Mach 1, 351C 4V AT) in 1972. And plenty more since. I'm thinking 331 or 347 for my 88 Lincoln Mark VII LSC. Must pass cali "test only" smog.

You guys who have passed, what year is your VEHICLE(standards may be different). Anyone know more about "needacage" 's setup?

I'm just desiring a MILD increase in torque........., I won't be manually shifting the AOD. No racing, another 75-100HP would be fine!! I do not want to give up any standard features(ABS, Cruise, etc.).

So I'm thinkink 331 or 347 when my 236770 mile 302 gives up. No Nitrous. Thanks, Mike C.
 

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Posted by vpr_klr (Member # 3353) on :
 

quote:

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Originally posted by Black88GT:
Hey guys what cam would be best in a 347 stroker to pass smog? What would be the best cam for power? Thanks for the help!

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it all depends on the seperation angles and individual duration on the intake and exhaust.

the XE274hr is the largest cam I've seen pass smog in any motor.

I had a XE282hr in a 377 pass before but that was with brand new cats.

New cats will usually hide anything. Problem is, if for some reason you get sent to a referee, buying new cats for all your smogging occasions can get pricey.

I would check out comp's ford stroker cams.

but you have to have a pretty healthy induction and compression ratio to take advantage of those cams.
 

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Posted by mikeceli (Member # 8389) on :
 
As far as cam is concerned, I am looking for low range torque, 1200 to wherever the AOD upshifts in D or OD.
 

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Posted by SmokinLX (Member # 1684) on :
 
Go custom if You are going to do it all . No need to guess when You can spend an extra 100-150 buck's and get the rite one the 1st time.
 

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Posted by Yellow94GT (Member # 431) on :
 
I would also say a custom camshaft would be the best way to go, but for the bang for the buck, it is very hard to beat the XE274. I know of a few more of these cams in stroker motors that didn't have any problem passing the sniffer.
 

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Posted by mikeceli (Member # 8389) on :
 
Custom from who?

How about Coast High Performance's "california legal 347" ? It uses a 4018 (forgot brand) cam.
 

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Posted by mikeceli (Member # 8389) on :
 
Thank you all for your input. MikeC
 

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Posted by SmokinLX (Member # 1684) on :
 

quote:

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Originally posted by mikeceli:
Custom from who?

How about Coast High Performance's "california legal 347" ? It uses a 4018 (forgot brand) cam.

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quote:

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Originally posted by mikeceli:
Hi! I'm new to the forum, but not new to Fords. I bought my first car(1970 Mach 1, 351C 4V AT) in 1972. And plenty more since. I'm thinking 331 or 347 for my 88 Lincoln Mark VII LSC. Must pass cali "test only" smog.

You guys who have passed, what year is your VEHICLE(standards may be different). Anyone know more about "needacage" 's setup?

I'm just desiring a MILD increase in torque........., I won't be manually shifting the AOD. No racing, another 75-100HP would be fine!! I do not want to give up any standard features(ABS, Cruise, etc.).

So I'm thinkink 331 or 347 when my 236770 mile 302 gives up. No Nitrous. Thanks, Mike C.

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