Turbo/L36-L67 ZZ Conversion
Thread Starter
Senior Member
Posts like a 4 Banger
Joined: Jun 2006
Posts: 112
Likes: 0
Turbo/L36-L67 ZZ Conversion
I imagine this topic has been discussed before but if i got a GT1 and *&* Headers and high flow exhaust along with a few other things replaced what are we looking at if i installed one? Mike was telling me that you would need a better tramission or custom tranny. That he said would bump your cost from 3k to around 5k in all. Just thought i'd get everyones advice in this topic. Also im Curious about ZZ'* conversion kit from L36 to L67 to slap on that super charger. What all is intailed in the conversion? Anyways food for thought.
Senior Member
True Car Nut
Joined: Feb 2003
Posts: 4,508
Likes: 2
From: Philly
Re: Turbo/L36-L67 ZZ Conversion
Originally Posted by Snuggles.bf
Also im Curious about ZZ'* conversion kit from L36 to L67 to slap on that super charger. What all is intailed in the conversion? Anyways food for thought.
I also think its waay overpriced for what it does. A top end swap would be cheaper and only a little bit harder. Still losts of work though.
Senior Member
Posts like a Corvette
Joined: Aug 2004
Posts: 1,598
Likes: 0
From: South Bend, IN (hometown) Indianapolis,IN (college)
i almost did the zzp m90 kit, but then i thought of the risks......blown motor, blown tranny, and i had planned on just doing the whole L67 swap.
Junior Member
Posts like a Ricer Type-R
Joined: Aug 2002
Posts: 11
Likes: 13
Most practical and economical:
Sell your car and buy an SSEi or Factory Supercharged SLE/SSE.
Next most practical:
Full swap to L67. Engine, trans, axles, wiring harness, PCM. You might also consider a full supsension swap. All 4 springs and both swaybars.
Sell your car and buy an SSEi or Factory Supercharged SLE/SSE.
Next most practical:
Full swap to L67. Engine, trans, axles, wiring harness, PCM. You might also consider a full supsension swap. All 4 springs and both swaybars.
Senior Member
True Car Nut
Joined: Sep 2005
Posts: 3,105
Likes: 0
Originally Posted by llBlazin_llLo
I'm confused the topic states 'Turbo/L36-L67 ZZ Conversion' where in this is anything about a turbo? 
Senior Member
True Car Nut
Joined: Sep 2005
Posts: 3,105
Likes: 0
In regards to the M90 kit..
They seem to say no to much would be affected, I don't know for myself how accurate it is though
what I wan to know is if that is true Why even have the L67 if the L36 can make more power with the same setup, why not just put a beefer trans in and boost it? I don't know much about boost, so if anyone can enlighten me thanks 
Originally Posted by ZZP
The kit comes shipped with a very large pulley, cold spark plugs, reprogrammed PCM and a ported blower. It will make just under 5 pounds of boost. As long as you run premium gas your car will be ok.......................
In stock form the L36 makes 200 HP. We have tested numerous stock L36 engines to over 500 HP without failure. Yes, it will hold up....................
The internals of the non-HD transmission are nearly identical to the HD version. The differential is weaker but that is only stressed during launching. Any modification that increases horsepower will increase the stress on transmission components but the stock transmission is fine to around 300 crank HP. The life of your transmission will be affected more by how you drive than by the installation of this kit.
In stock form the L36 makes 200 HP. We have tested numerous stock L36 engines to over 500 HP without failure. Yes, it will hold up....................
The internals of the non-HD transmission are nearly identical to the HD version. The differential is weaker but that is only stressed during launching. Any modification that increases horsepower will increase the stress on transmission components but the stock transmission is fine to around 300 crank HP. The life of your transmission will be affected more by how you drive than by the installation of this kit.
Originally Posted by ZZP
On a stock L36 look for gains of 60+HP and 60+ ft/lbs of torque. If your GT is modified the gains will be larger. Because of the higher compression and longer rods the L36 will make 5% more HP and torque than an L67 with the same amount of boost.