6.0L into an 84
6.0L into an 84
Need some questions answered. 1. Will the 6.0(LQ9) bolt up to a 700R4 Transmission? 2. What problems will I encounter mounting the engine. 3. Will there be problems between this engine and the transmission, interfacing and such. Any help would be greatly welcomed.
Joined: Mar 2000
Posts: 43,187
Likes: 43
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
Have you read the LS1 swap sticky yet? The LQ9 is in the LS engine family. The sticky has a link in it regarding starting with a truck engine (such as the LQ9). That will answer your question #2.
As for the TH700 - in my opinion, that is a very poor choice. The 4L60E is an upgrade over the TH700, and the LS 4L60E is even better. The LS engines (with the exception of the iron headed 6.0 engines, and 4.8 manual tranny, from what I understand), have a different crank output flange distance than older engines. You either need to use a specially-built torque converter, or use a special adapter flexplate or spacer. The bellhousing pattern on the LS engines is different as well - the basic pattern is the same, but the LS engines have a top bolt, and don't have the bolt directly behind the passenger side cylinder bank. That means the TH700 will have one less bellhousing mount bolt. The LS transmission bellhousings have a full circle pattern, with two bolts on the bottom going to the oil pan. Overall, just a better, stronger setup to use an LS 4L60E.
As for the TH700 - in my opinion, that is a very poor choice. The 4L60E is an upgrade over the TH700, and the LS 4L60E is even better. The LS engines (with the exception of the iron headed 6.0 engines, and 4.8 manual tranny, from what I understand), have a different crank output flange distance than older engines. You either need to use a specially-built torque converter, or use a special adapter flexplate or spacer. The bellhousing pattern on the LS engines is different as well - the basic pattern is the same, but the LS engines have a top bolt, and don't have the bolt directly behind the passenger side cylinder bank. That means the TH700 will have one less bellhousing mount bolt. The LS transmission bellhousings have a full circle pattern, with two bolts on the bottom going to the oil pan. Overall, just a better, stronger setup to use an LS 4L60E.
Member
Joined: May 2011
Posts: 286
Likes: 0
From: Andalusia, AL
Car: 1991 Camaro RS
Axle/Gears: Stock
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