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Old 01-04-2006, 08:38 PM
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inline six 250 with integral head

I have a '79 chevy pickup with the integral head. I live in california and the governator recently stopped the thirty year smog exemption so I have to have the vehicle smogged every two years. Part of the smog inspect is to ensure that what is on the engine matches what is in the book.

I would like opinions and any info you have on what I can do to increase the performance of the existing head. I am not opposed to disconnecting or removing emission control components, but I have to retian the ability to put them back in place every two years.

The other option I have explored is using an earlier model head with seperate intake manifold, etc. and putting the intergrated head back on come smog check time. Any ideas???

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Old 01-05-2006, 09:47 AM
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Just my opinion.

You are willing to go to all the trouble of swapping out a head, just to satisfy the smog sniffers?

If that's the case, why not build a really healthy early style 250, or even a 292, and shelf the intergoogle, until check time, then swap the whole engine.

I mean, if you are willing to cheat, cheat a lot. It's going to bite you just as bad, if you get caught with an illegal head, or an illegal motor.

Besides, most of the integral heads I've seen were junk, due to cracking in the "mainfold" area. If you aren't using the motor, I doubt seriously, if you'd break it.



Just my $.02
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Old 01-06-2006, 08:40 AM
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integrated head

sounds like a better plan than pulling the head and all the crap attached two it every two years.

Any ideas how I can improve the performance of the integrated head? Are there any valves, sensors or lines that I can unhook and plug that will improve performance and clean up the look until time to reinstall?

Thanks.
Kfoy
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Old 01-06-2006, 08:44 AM
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sounds to me like too much work move to Fla they abolished the inspection 20 years ago


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Old 01-07-2006, 12:24 AM
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Arkansas is closer.

Might be less trouble to just drop in an emissions-legal 305. I've had identical Novas except one had that same six & the other had a 2-bbl 305, and the difference was night and day. I can't imagine that doggy 6 in a vehicle that outweighs a Nova by a half-ton or so.
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Old 01-07-2006, 12:30 AM
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just build up a SBC, drop it in, then when inspection comes up just drop in the I6 again. or... just move to FL....
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Old 01-07-2006, 07:21 AM
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You could do what i used to pass smog test when we had it in MN. I would run gas tank almost to empty then add a couple gallon of denatured alcohol and run it though the test their equipment cant pick IT up so it shows car is running really clean. then go fill tank back up and use it up as soon as possible.
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