Carbed 86 305 to carbed 350 swap in CA?
 

Hello. My first post on a third gen board, imagine that.....

I have an 86 FB with a 305 LG4 in it and it's broke https://www.thirdgen.org/messgboard/smile.gif

I need to swap in a 350, still pass smog, and have the swap be as cheap as possible, maybe just purchasing a remanufactured engine.

Any suggestions?

Thanks!!

GP

I don't know but I wouldn't think it would be legal to go from fi to carb in an older form I don't think they would let you pass unless you could make friends with a state inspector.

P.S. If they can't see it inside the engine it is legal. https://www.thirdgen.org/messgboard/smile.gif

[This message has been edited by poncho9789 (edited November 26, 2001).]

i think, not sure. that if u swap in a drive train that is from the same year or newer then it will be ok as far as emmisions. but im not sure on that, and thats all i know.

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- David
88' GTA 5.7L TPI MODS---> air foil, K&N, Shift Kit, 180* therm, TB bypass, Gutted CAT, Flowmaster 80 Series Muffler added to Unkown CatBack, Ported Intake
http://members.home.net/rickemard/burnout.gif
http://www.geocities.com/david_angel_16

he wouldn't be going from fi to carb.. LG4's are carb'd...

From everything I've heard and read in Cali you gotta go same year or newer, and it has to have been offered in the car. IE, you can put an LT1 in your 86, but you can't put an '02 327 from a truck. I've also heard Cali emmisions nazi's will go as far as to check the casting #'s on the block. I think your best bet is to find a place that won't do that, and figure out a way of getting a 305 to pass 305 emmissions, either that or find another LG4 or an L69.

just don't tell them its a 350. They can't look inside your engine.

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-Tas
'89 Formula WS-6

305, TBI, 700R4, P.A.W. 14x3 open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips, Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248)
Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options

BINGO

Take it from a smog guy, I don't want to know its a 350. Just bring it into the local smog banana with all the stock smog equipment installed and working and no one will care.

Happy hot roddin



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ASE Mechanic/Machinist/Smog Tech

1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R
and 2 POS commuters...

R.I.P. #3
"He can see air"

You can do what Tas said, most techs wont bother to check the block. Accidentally grinding all the identifying numbers off the block will make it really difficult to tell.

I know you dont want to spend money, but in case someone looks this post up, the ZZ4 swap is 100% legal on 82-87 carbed cars.

Actually, you can. The state just doesnt want you to know that.

hey, whoever it was tat said zz4 conversion, thats what i ws thinkin. jim pace performnce sells it for like 4400 and it has 355 horse and carries a CARB certificate, its legal and fast as a mofo. on the lip side anyyone been folloein the my gen camaro in CHP mag? these guys give us bad names man. started with crbed 305 and 5000 later, with exhaust, carb rejetting, head work, and a 175 shot they can only muster 13.9's. absolutely horrible. all ican say is that they actually asked for suggestions on where to go from here, nd budget is the kkey. i ws thinkin if all thhey did was the zz4 theyd have come out faster and cheaper, but oh well. send your comments and suggestions to chevyhi@primediacmmg.com

I am sorry man I was thinking of LO3 TBI

The state smog ref guy down in Chula Vista told me that as long as everything LOOKS good they don't really care if it's actually working. He even suggested getting a 350.

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85T/A 305/QJ work in progress.

Careful about the ZZ4. To be "technically" legal, you have to buy and install the entire conversion kit, which is about $1100 more than the ZZ4 crate engine. One thing the kit has that you don't get with the crate engine is the EGR tube to the exhaust manifold (required because the heads don't have the crossover passage).

But, like they are saying above, as long as all of the LG4 stuff is installed, or you use CARB certified replacement parts such as headers, a 350 will pass as easily as a 305. A new cat will make it even easier.

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82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R4, 2300 stall TC. Ported World 305 heads, Crane PowerMax 2050 cam. ZZ3/4 intake, oil pump, pan & baffle. Accel HEI SuperCoil & module. Hooker 2055 headers, 3" Catco cat & 3" catback w/dual-opposite Flowmaster 80. 2.93 limited slip. Spohn SFCs waiting to be installed. AMSOIL syn lubes bumper-to-bumper. Daily year-round driver. Best ET, speed TBD...
57 Bel Air, my 1st car. '66 396, 9.7:1 forged TRWs, Weiand Action+, Holley 750VS w/4150 conversion, GK 270 cam, Magnum rockers, Jacobs Omnipack, 1-3/4" Hedders & 3" Warlocks, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, MegaShifter, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Idles smooth @ 700 RPM in D. Best 15.02/95.06 @ 5800' Bandimere (corrected 13.93/102.4 @ sea level).

OK, so how about to make it cheap, I get a remanufactured engine from some place with a 3 year warranty?

If I went that route, any suggestions on what year car I should say I have to get the most bang for the buck from one of those?

What about some of the other cheaper gm crate engines? Do I need other stuff to make soemthing work like the egr tube mentioned for the ZZ4?

Thanks guys!!

GP

i just went the cheap ol' gm brand new 350 crate engine for 1400 or so and just added headers and what not to not lose any of the power. i passed smog with just the stock smog crap on it and a new cat.

daniel