Crate Engine Swap for 91 5.7L L98
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Crate Engine Swap for 91 5.7L L98
I have read a bunch of engine swap threads already.
If I just buy say a GM crate motor, ZZ4 or ZZ383 as an example, all the other parts off of my L98 finish the motor? Is it smog legal to do in California?
If I just buy say a GM crate motor, ZZ4 or ZZ383 as an example, all the other parts off of my L98 finish the motor? Is it smog legal to do in California?
Joined: Mar 2000
Posts: 43,187
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
If you equip the ZZ4 like a Vette L98, it would pass the motor change referee.
The ZZ383 has Fast Burn heads, which require a Vortec-style intake. That would be a give-away to an aware inspector.
The ZZ383 has Fast Burn heads, which require a Vortec-style intake. That would be a give-away to an aware inspector.
Joined: Jan 2005
Posts: 10,450
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From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: Crate Engine Swap for 91 5.7L L98
I have had aware inspectors skim over the fact that the engine has a Vortec intake and an external EGR system. It looks stock and has the same function as stock, so it is not a big deal in most cases.
Joined: Mar 2000
Posts: 43,187
Likes: 46
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
They ignored the lack of an EFE valve here in Colorado, but Colorado & Texas ain't Kalifornia.
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