BELT ROUTING DIAGRAM FOR CORVETTE STINGRAY WITH A 454 ENGINE

Some crank pulleys have 2 belt grooves, some have three. You may need to get the corresponding pulley for your setup.

Normally the 3rd is used for airconditioning right? Or airpump.

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There is a mismatch of approx 1/2" between the crank and the waterpump pulley

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I have a long water pump, power steering and alternator. Crank is three groove, the water pump is two groove, and it will come with the belts also.

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The spacer between the cylinder head and the alternator, grind it down or shim it out to get the right alignment.

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The main problem is that the waterpump pulley does not align with the crank pulley. And I can only fix it if I install shims between the crankpulley and the harmonic balancer

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I think you need a different crank pulley, look at pics

Also you can see the crank pulley in the pics of old .

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NOW this image is for latest models:---

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this is a factory a/c car with power steering.

a/c brackets on passengerside

notice the 2 small spacers for the belt tentioner. also, notice the extra bracket that helps support the alt. it connects back to the block.

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notice the alt bracket in the top pic. the bolt is a stud that tightens up against the water pump and it has another threaded section that secures the alt bracket.

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454 with A/C and Power Steering.

A/C Belt: Gates #9463, 1/2" X 46 3/8"
P/S Belt: Gates #7453, 3/8" X 44 1/8"
Alt. Belt: Gates #7300, 3/8" X 30 5/8"
WP to Crank: Gates #7320, 3/8" X 32 5/8"

*NOTE* To install the WP to Crank belt, I remove the WP pulley and slip the belt into position, then I install the pulley onto the WP. This way, the belt fits good and the tensioner wheel isn't pushed in too far.

with factory a/c. pulled by the power steering pump pulley

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This is just for LS4:---

LS4 Fan Belt Configurations