The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

**Captainfab** · 09-14-2017, 11:52 PM

I have not made an exact comparison but a 4L80E should not be any 'bigger' than a TH400 as far as tunnel clearance is concerned. The 4L80E is just longer. I installed a TH400 in my '66 Suburban with a low trans hump. But I did move the engine and trans froward 2".

09-14-2017, 11:52 PM	#9
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: 1966 LS swap info I have not made an exact comparison but a 4L80E should not be any 'bigger' than a TH400 as far as tunnel clearance is concerned. The 4L80E is just longer. I installed a TH400 in my '66 Suburban with a low trans hump. But I did move the engine and trans froward 2". __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE