Paul,
Not sure where you are, but if in California or states with similar rules,
you must swap an engine in that is the same or newer model year of your
vehicle (so you've got the right idea there) and it must have "all" the
required emissions equipment swapped with it and/or hooked up to your
existing emissions equipment. You have to get an inspection and approval
letter from the appropriate agency for the swap and show that at your
annual/biannual inspection. You must pass the tailpipe test, but that alone
is not sufficient to comply. Before you finalize your choice, you may want
to talk with the inspection folks to see what all they'll require.
Ben Zwissler
bjzwissler@gmail.com
Columbus, IN
1966 TR-4A IRS
1973 MG Midget
1980 TR-8
2003 Honda ST1300
-----Original Message-----
From: shop-talk-bounces@autox.team.net
[mailto:shop-talk-bounces@autox.team.net] On Behalf Of Paul Mele
Sent: Monday, December 22, 2008 6:43 AM
To: 'John Miller'; shop-talk@autox.team.net
Subject: Re: [Shop-talk] Engine swaps; 350 SBC donor cars.
Thanks for the thoughts. I'm not married to the SBC, but the cost of the
LS1 may be too much. again, my plan is to buy a (crashed/ugly) donor
car...if it only comes in a 'vette, I don't think it will be cost-effective.
what cars would have the suitable engine(s).
re: smog
we do have testing; the 86 body would only require minimum specs. the newer
donor car would easily meet them, I suspect.
PM
> I've acquired an 87 V12 jag coupe. I know that the V12 isn't a good
engine;
> it has a GM TH350 behind it.
Gonna venture a few opinions though I'm no expert on the subject...I
thought the Jag V12s got the Turbo 400.
> I'm looking for any ideas on the swap, but particularly a good idea
> for donor cars 5-10 yrs old that I could use to source the engine,
> trans and wiring harness (...no warm beer for me).
The best choice engine-wise, of course, would be a fairly recent
LS1/LS2, but I'm not sure how far the kit guys have gotten with the
LSn-series motors.
> the Jag's V12 is about 285 HP/ 295 ft-lbs, and also weighs around 4000
> lbs with the V12. I don't see any weight listed for the V12 engine,
> but I'd guess it 100-200 lbs heavier than the SBC.
No, the Jag V12 is a 60-degree aluminum motor and not all that heavy.
About as heavy as an iron SBC, I think. A bit heavier than the LS1/LS2.
> So, who has some ideas on 350 SBC-equipped production cars with
> ratings similar to above, and a 4-speed auto/ OD trans?
Any LS1/LS2 you can find will beat those numbers by quite a lot.
Do you live anywhere that smog legality matters?
John.
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