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#1 |
Registered User
Join Date: May 2005
Location: roanoke wv
Posts: 60
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Engine Swap
I'm new to this board ,been here about a week. I enjoy everyone's questions and comments and gereat pictures. I have a question. I have a stock 1969 C-20 long bed. It now has a 307 with 4 speed granny trans. I have a bum leg and clutching is sometimes difficult. I also have a 283 with a two speed powerglide transmission attached. Would this be a difficult swap? And would it be a good swap?
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#2 |
Senior Member
![]() Join Date: Jul 2004
Location: Estherville, Iowa
Posts: 3,371
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IMHO a Powerglides best application is for drag racing only, not street. Get a turbo 350, or 400, but best especially for a low geared C20 would be a 700R4 with the overdrive. Your will need to remove the manual cross member under the bellhousing and add an auto xmember under rear or trans. Starter nose will need to be changed to auto type, driveshaft will need to be changed or altered to fit, cooler lines, different radiator for cooler, and throttle cable/kickdown hooked up and vacumn line ran depending on trans type. Auto shift column, and linkage should be swapped in, backup lights and neutral safety switch rewired, correct brake pedal, remove cluth pedal etc.
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1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0 |
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#3 |
MOTORHEAD!
Join Date: May 2000
Location: Devon AB, Canada
Posts: 849
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In my opinion, the 283 will be so weak with the glide in a heavy truck. I ran the powerglide behind a 250 horse 350 and it was a major dog. 700r4 would be sweet with the 283 because of the low first gear.
Good Luck!! 910
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82 GMC High Sierra VortecPro 496 12 Bolt, 3.42's AFR 265 Holley 850 Performer RPM Air Gap Hooker 2455's TCI Turbo 400 Super Street Fighter TRRC 12 Bolt Eaton Posi Mark Williams Axles Cal-Tracs Hoosier 30x10.5 Radial Slick Full weight long box pickup Current best- 11.33@117mph |
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