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deuce dodge
05-02-2006, 09:59 PM
have a 89cb 2.5 that i converted to 2.2 cb.........looking at my round teeth:D sprockets ...........i git to thinking....

is all of them the same???????89 and up?????

is them cam sprockits the same as the intermediate shaft sprockits??????

is tbi sprockits same as turbo 1????????????????

for that matter can i use a tbi timing belt on a turbo cb motor???????

deuce

BadAssPerformance
05-02-2006, 10:02 PM
Good question. I beleive all the '89 + T1/T2/T4 round tooth cam/I-shaft sprockets are the same. Anyone know for sure?

87glhs232
05-02-2006, 10:22 PM
Sprockets according to The Dodge Garage:

1984-1988 "4201974" Square tooth 2.2 Turbo, 2.2 N/A
1984-1987 "4201992" Square tooth hi-output 2.2 N/A
1989-1992 "4387557" Round tooth 2.2/2.5 Turbo, 2.2 N/A
1989-1993 "4448690" Round tooth 2.5 N/A "common block"
1986-1987 "4273238" Square tooth, "tall deck" 2.5 TBI ONLY
1988 ......... "4387535" Round tooth, "tall deck" 2.5 TBI ONLY

Timing belts too:

84-88 All 2.2 engines, Square tooth ............. (Gates p.n. T071)
86-87 2.5 tall deck, Square tooth ................. (Gates p.n. T114)
1988 2.5 tall deck, Round tooth ................... (Gates p.n. T132)
89-93 All SOHC 2.2/2.5, Round tooth ......... (Gates p.n. T153)
91-93 2.2 DOHC 16V with Lotus head ........... (Gates p.n. T206)

BadAssPerformance
05-03-2006, 12:00 AM
Good info... I was mostly right ;)

deuce dodge
05-03-2006, 06:01 PM
ok how about intermediate shafts?????? can we swap sprockets there?????????????

and way to go josh..(how could i forget ddg....oh i was way tired .lol..)........you rule :)

deuce

BadAssPerformance
05-03-2006, 06:15 PM
Pretty sure that the cam and I-shaft sprocket on the same motor should be the same p/n.

deuce dodge
05-06-2006, 04:54 PM
sweet thanks .wo hoo

deuce

turbovanmanČ
05-06-2006, 05:27 PM
ok how about intermediate shafts?????? can we swap sprockets there?????????????

and way to go josh..(how could i forget ddg....oh i was way tired .lol..)........you rule :)

deuce

The 8V round tooth all have the same pitch so it doesn't matter what you run on the intermediate shaft as you set the timing using the distributor.

TurboJerry
05-14-2006, 06:28 PM
Hehehe. The turbo's have the 557 on the cam and the 690 on the int shaft. The TBI's have the 690 on the cam, and the 557 on the int shaft...... The cam will be 5 deg adv with the 557 if you had the 690 on there before. Don't ask how I know......

Directconnection
05-14-2006, 09:05 PM
Good question. I beleive all the '89 + T1/T2/T4 round tooth cam/I-shaft sprockets are the same. Anyone know for sure?


557 is the cam gear found in the turbo cars AND 2.2 N/A cars. 690 is the 2.5 N/A sprocket. Roughly 3 cam degrees difference from what I checked out years ago. 535 is the odd one that is the same as the 690 timing wise.

deuce dodge
05-20-2006, 08:14 AM
so is there any performance to be had by mix and matching? :)

deuce