Absolutely backwards. The exhaust manifolds and heads are identical. The pistons, wrist pins, and rods, however, are not. The LIM and SC will bolt right up to the L27 (assuming you use Series 1 L67 parts), but there'* ALOT more to the puzzle than that.

Starting with a 4T60E non-HD that is just begging for the extra 30 lb ft of torque that'll have it spitting it'* chunky love juices for the new found power.

If you insisted on putting the blower on, I'd be looking into a 1992-1993 blower, with a 1994-1995 pulley, which would net you about 30-40 lb ft of torque and around 20 hp, still enough to really put your trans on edge. As for the engine with that setup it would probably last a while, but we all know what happens when the mod bug bites.

Well, considering the projected cost of this mod, this is already sounding like an ungood idea. The fact the car has been driven HARD since it was new 125,000 miles ago, and is already putting out more horsepower then the base and LS Imapalas means I probably shouldn't do this mod anyway. The fact i've got far too much money tied up elsewhere (other hobbies & obsessions) pushes this over the edge.

It is nice to know, however, that one could do this without a huge difficulty. And the added few dozen horses could come in handy sometimes. The faster those rice rockets disappear behind me, the happier I become!

Thanks for all the input!
AR

Just curious, why is it putting out more power than the LS Impala? I dont see any mods in your sig that would attest to that.

It'* a 9C1...Thats Chevrolet'* equipment code for their pursuit package. The car is still as fully equipped, sans lights, radio and gunrack, as it was the day the RCMP purchased it new. Thats also what I meant by it being driven hard.

I didn't do much to my sig, as originally, I was on here only for Bonneville information for a friend. However, having recieved a very friendly welcome from most everyone i've spoke with, I've opted to hang around and mooch whatever information I can!

AR

Right, I know what the 9C1 package is, I was just wondering, because in your case it doesnt really have any performance parts other than suspension components.

You do have 3.29 gears, and I believe the LS only has 3.05s, so that would make it a little quicker, but really its a stock 3800 with some really nice suspension mods.

For $899.99 for the supercharger setup, I think I'd rather hit up Mr. Morad for a lower mileage l67/4t80 setup for ~$1,200.00. It'd give me a better piece of mind....

I wonder how long it will be before you won't be able to find l67s with under 100k...

My bad. I was TIRED the other night.



L67/4t80? I think you mean 4T65E-HD. And correct me if I'm wrong, but didn't the 9C1 include the HD trans in it'* list of beefier parts?

Why yes, yes it does. I overlooked that the other night when I was researching, that is another very mod-friendly feature. At least thats what this brochure I found states:

http://www.9c1.com/brochures/2000/00_impala9c1.pdf

Keep in mind that brochure is for a US model, SRD'* is a Canadian one with an interesting history we hashed it out in PMs the other night, and its already hopped up a little from its previous owner.

My brother is a Police officer and if given the choice will always choose the Crown Vic over the "Spin out King" Impala.