Two barrel manifold on a 401, Smog Nazi's and Edelbrock egr intakes.

[Nikkormat]

Alright I've tracked down my new engine, looks like I'll be getting another 401 FSJ.

But I have a bit of a dilemma.

I don't want to bottle neck my performance, but I don't know where I might be living in the next 5-10 years. So I'm thinking worst case scenario. California.

Now being as the Waggy is a 90. I'll need to pass emmisions. That should be no trouble tail pipe wise. And it will have a Howell CARB sticker under the hood for TBI. But will smog Nazi's fail me on an Edelbrock intake (with EGR) and a non stock distributor?

If I keep the stock intake, and run a 500cfm Holley 2bbl for now how much performance am I sacrificing with a K8600 cam and stock exhaust?

What advice can you offer?

[KJ Ryu]

401s never came, stock, with a 2bbl intake, to my knowledge. Shouldn't be hard to find a factory 4bbl intake. I know nothing about emissions laws, though, thankfully.

[REDONE]

Gabe, I wouldn't worry about it too much. Running TBI and a cat your pipe should be clean enough to appease a California Smog Referee by today's standards. Fortunately CA has referees. I searched and searched, then finally called Envirotest who told me CO doesn't have referees. You either find a test station on a good day and pass, or you get $750 in receipts for smog repairs and apply for a waiver. Those are the ONLY two ways in CO.

Even if you build the engine to pass CA emissions today, there's no guarantee that they'll be the same in 5-10 years (probably a good chance they'll be different), so you have 50/50 chance you'll be in the same boat regardless. Since you live in CO and plan to move to MT, build your engine for here and rock on!

[derf]

I don't want to bottle neck my performance, but I don't know where I might be living in the next 5-10 years. So I'm thinking worst case scenario. California.

Typically, from what I remember, CA requires a CARB E.O. number on any non-factory parts. If you don't have one for a given part you can take your chances with a smog referee passing you without the CARB number. But it all depends on how meticulous the referee is. Some won't care as they pay more attention to what comes out of the tail pipe than how air and fuel gets into the engine, some just won't pass you with "non approved" parts.

Alternatively, there are square bore 4bbl manifolds for the AMC V8. They were used on AMC cars in the early 70's I do believe. They're rare but they are available from time to time and they work. Or, you can get a spread bore intake and bolt a Motorcraft spread bore to square bore adapter on, followed by a square bore to TBI adapter sandwiched on top.

It might also be possible to get a machine shop to open up the holes on a 2bbl intake to ease that choke point. The runners may still be a little small but with the opened up intake into the plenum, that would be your restriction. If you go this route, there's no point in getting a bigger cam. Bigger cams want air. And when they don't get it, performance is cut off. With a 2bbl intake, you really don't want to go much bigger than the Edelbrock Performer cam. It will take advantage of the airflow it gets and cut off around the same RPMs that your air supply does (maybe in the mid 4K RPM range).

[tgreese]

401s never came, stock, with a 2bbl intake, to my knowledge. Shouldn't be hard to find a factory 4bbl intake. I know nothing about emissions laws, though, thankfully.

I recall the 401s AMC supplied to IHC were 2Vs. IHC called them the 400. No AMC 401s came with a 2V.

[Nikkormat]

401s never came, stock, with a 2bbl intake, to my knowledge. Shouldn't be hard to find a factory 4bbl intake. I know nothing about emissions laws, though, thankfully.

I recall the 401s AMC supplied to IHC were 2Vs. IHC called them the 400. No AMC 401s came with a 2V.

That is correct.

I just picked up a spreadbore factory intake. I'll compare it side by side with the IHC application intake I have and a 1990 two barrel. See if there are any differences. I've also got a 1970 4bbl machine intake to compare too.

[Nikkormat]

Are there any CA people here running the performer?

Am I screwing myself on the exhaust side?

[Charles Kline]

I'd say worry about it in 2 years when your registration and emissions is due.

[Grand_Wag_85]

IHC used a 2BBL 401 in their trucks when they used the AMC engines. Some Matador cop cars had the 2BBL 401 as well. No idea why though.

Edit: I ran a 2BBL manifold for a few weeks on my 401...it did OK, wasn't quite the dog I was expecting.

[Tatsadasayago]

In CA you're going to run into two common issues getting your jeep to pass; There were no 4bbl engines offered in the GWs so even though the Performer EGR is CARB approved most, if not all stations will fail it on the visual. The other issue is the distributor as you know. If yours has a red or blue cap, simply changing it to a black one (And giving it time to get dirty) is usually all you need to do to pass that part of the inspection. My reasoning is simple; most emissions test techs are younger than the newest GW and have likely never seen one. They conduct their inspections either by prompt from the testing system or by the Chilton Emissions Guide...and are not likely to know the difference between the OE and HEI distributors.

If it were me, I would gather up a 2bbl cast iron manifold, paint it gloss black and add the appropriate 2bbl for 1990...and put it on before testing.
No inspection tech ever looked for the CID on the block and I suspect they had no clue they are there. They go off the VIN and assume it's a 5.9 so that isn't much of an issue running the 401.
What you WILL have to be dead-nuts accurate is the emissions equipment...down to the properly colored CTO and delay valve colors and proper routing of all vacuum lines. Your EGR must be functional as they will test it while the engine is running. Same goes for the A.I.R. pump and control valves.

I got the old 76 404 4V Gag-O-Neer to pass with HEI, headers, EGR performer and Eddy 1406 by removing the eye-catching EDELBROCK tag and going with a black dizzy cap

[tedlovesjeeps71]

Why would ANYONE, willingly, move to Kalifornia???


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[Nikkormat]

Why would ANYONE, willingly, move to Kalifornia???


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Notice I said worst case scenario!

[Tatsadasayago]

Why would ANYONE, willingly, move to Kalifornia???


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Because many Socialist Swine have been moving away to TX, CO and WA

[Nikkormat]

Alright thanks guys. I think I know what I'm going to do now.

I forgot I still have my "industrial" intake off the harvester 401. Its a 1971-1974 4 barrel square bore intake with a Holley 2300 flange instead of the 4 barrel flange. It won't flow as well as a performer, but it will be better than the 1990 intake and save me alot of money.

[Grand_Wag_85]

One of my CA buddies painted his edelbrock intake black and the smog guys never knew. I'd probably go that route personally.

[Nikkormat]

One of my CA buddies painted his edelbrock intake black and the smog guys never knew. I'd probably go that route personally.

That's what I want to do. But I just can't justify the cost. If I'm buying a manifold I'm also putting in a bigger cam, and I'm buying an airgap or a tourqer, and a big carb. It'll cost the same and give me way more power.

[derf]

The big manifolds and cams may give you a lot more top end but you sacrifice low and mid range torque, not to mention driveability. Unless you're planning on doing a lot of racing, you're much better off with a performer and moderate cam when it comes to day-to-day driving.

[letank]

my distributor cap is red, not too sure about the CTO color, and I am missing the delay valve, I passed. The only time a tech was finicky " I can fail you because you have an electric fuel pump".

As for the smog referee, his assistant can be crawling all over looking for catalyst ref number to match cal program (it was on the Honda), the one I had to visit was in a community college.

As for bringing one back to Cal, yes it must match was is required for that vehicle year...

There is always a way around it... check the landcruiser with diesel engine that was never imported in the US: basically it is considered a kit vehicle... a half diesel cab with engine and CPU is brought on a pallet... then transfered to a US specs...

Back to FSJ, our former gobernator had a diesel FSJ built in Cal and met Cal specs... In fact s a 1984 Wagoneer body grafted on top a late-model ¾-ton GM chassis...

http://www.drivingline.com/articles/arn ... -wagoneer/

This particular setup was tuned to run on bio diesel by Hi-Line Conversions and turns out an estimated 500 horsepower.

Sorry I went a bit off-topic

[tedlovesjeeps71]

Must be nice to be rich^^ lol


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[babywag]

performer egr intake will be fine
single cat y-pipe on exhaust is mandatory
distributor will be fine too
if howell sticker is there you should have no trouble with visual on above

stay far away from a smog referee! (you stand a much better chance regular test station)
refs are 110% by book and will fail you on...
a non howell tbi system
an edlebrock egr they aren't legal
any hei distributor that doesn't have an eo msd is only one afaik