know i'm confuced,

i thought that all the 350 used the same crankshaft puley's.

i got a 350 engine in my 69' delta 88 and want to replace my crankshaft puley.

saw it at fusick under cutlass section, but now it seems that it will not fit my delta 350?

where is the difference in it?

Crankshaft Pulley: Two groove pulley replaces GM # 405459. Fits 1970-77 all
V8s except A/C or H.D. cooling, and all 1972 W30 models.
CSP59 Crankshaft Pulley 1970-77 Cutlass/442

now i proberly have the HD cooling fan 6 blade 19a 20 inches?
no idea why, i don't have A/C on it.

are there many sort's of 2 groove pulley's used on the 350?

 

There are 3 different length pulley sets because there are 3 different length water pumps. Thus the crank pulley needs to be matched with the water pump pulley. and the number of grooves will change as well. A 1, 2, or 3 groove depending on the options (there were even 4 groove pulleys on 307s, but that won't apply to you).

 

As Randy noted, the crank pulleys aren't specific to the engine, they are specific to the installed options. If your car has A/C you need a three row crank pulley. If you do not have A/C (alternator is on the passenger side) you need a two row crank pulley. It doesn't matter if it's a 350 or 455.

 

Post the letter code on your crank pulley, and someone on here should have one. Is yours ruined?

 

a shall surche for that letter.

got a 3 row on it, and a 19 inch 6 fan so it is possible that someone got my AC

mine is a bitt off, someone tried to get off the balancer.
got my a new one not original but a tuning part balancer, and the pulley swings a bit.

And do not want to wait till the cranck seal starts to drop

 

should it be a full letter code? i saw only ( i think) a small letter S
it is re-spraid. could be a scratch
So where to look, before i bolt it off.

thanks

 

There is usually an S, and then a 2 letter code opposite of it.

 

if found some letters, difficult to read but maybe you guy's understand.

99405 KE? or something lik that.

http://img100.imageshack.us/img100/8220/12052010010.jpg

 

joe, did anyone remove data on the tech side?

i have a hard time to find my 390327 intake manifold data again.
Had it written down but lost it.

 

1968 Assembly Manual:

Crankshaft: KB 399402 2g 6.4 x 2.2" 0.901

Water pump: KE 399401 7.10 x 2.0

Power steering: KG 399403 1g 5.72 x 1.42

Alternator pulley - 1100767 AG

5.1" water pump snout

2nd groove: belt #399594; C-WP-PS

 

??
now i get confused

can't vind such thing in my service manual.

but i have 3 rows on the crank, 3 on the fan puley, 2 on my steering,
and i do have my alternator on the left

and i can cut of a row if i want becouse the are not in use.
So, is the 2 row same as te first 2 orws of te 3 row?

same backspace?

if not i nead a 3 row again. or change everything

 

Question #1: What is the water pump snout length?
5.1, 5.6 or 6.1?

Question #2: What is stamped on the water pump pulley? (need a clear answer here)

Question#3: what is stamped on your power steering pulley?


They are usually all stamped K something, so
not enough information yet.

399405 Should be a KC crank, not a KE or KB

 

waterpump is stamped with LD? B9 with a small s under it
on the powersteering say's Front KH?

forgott to mesure the pumpsnout,

69' delta 88, 3 groove pulley, water is 3 groove and powersteering is 2 groove

 

from the pic he sent. It looks like he has a mis match pulleys from an A/C set up.
But the car does not have A/c. At some point the engine was changed or was in a crash and needed new pulley's and water pump.
So now need to measure the water pump and find the pulley's to match for a non A/C set up.

Gene

 

Agreed. Or he can just run AC pulleys and an ac style alternator bracket on the driver's side.



1974
LA crank 3g
7.8 x 2.3 1.368

LD Water 3g 5.7 x 3.7"

KA 412628 Steering 2g 6.6 x 2.2"

6.1" water pump.

1968
"KC 399405
3g - 7.5 x 3.0" 1.230

Water=KF 399404 3g 6.10 x 2.70"

Steering= KH 399406 2g 6.6 x 1.95"
5.6" water pump

1968 NON AC
Crank=KB 399402
2g 6.4 x 2.2 0.901

Water="KE 399401
2g 7.10 x 2.0"

Steering= KG 399403 1g 5.72 x 1.42"
5.1" water pump

 

waterpump was renewed, but i also have 2 holes in the firewall that could be used to get hoses inside.

i use it know to get my extra wire's in.

 

how do i measure the snout, my waterpump pully measure 4cm (1,6 inch) against first row to end of snout.

must i measure the total snout? from sealing to end? ( til the black rotor where the pully bolts on?)

 

 

 

Why do you need to change the pulley? It looks like they are doing the job.
Is there a problem with the crank pulley?

Gene

 

yes i have it, 6.1 inches. needed the converter for inches cm

15.5 cm ----> 6.1 inches




checked my 69 manual but see not the marking it should on a AC waterpump

 

64 rocket,

the pulley wibbels, is a bit off. former owner tried to hammer the pulley and balancer off the crank.
so i allready had to buy a new balancer

and i'm scared that my crank seal is gonna leak trough this



there are 2 holes where i put my extra wires trough

 

i think i have the KC 399405
3g - 7.5 x 3.0" 1.230

Even when it is not correct to my waterpumppulley.
if you see if i put on a ac there are not aligning with the other pulley's.

my waterpump snout is to far back to use the first one.

And i do not know if i have to worry when te crank pulley is not blanced right.