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Pontiac Louvered Windage Tray SPE-WT4


Pontiac Windage Tray for IA2/all Pontiac V-8's

Works on all strokes including up to 4.500"

Pricing: $259.95



Pontiac Louvered Windage Tray- for stock and aftermarket blocks *will not work with stock lower dipstick tube* #2 & #4 main caps must be threaded for tray to mount **DO NOT MOUNT TO CENTER MAIN CAP ONLY**


The windage tray is designed for the IA2 block but works on all Pontiac V-8's with splayed or regular main caps - both 2 bolt and 4 bolt*. Tray allows for better oil control and entry back to the oil pan than glue on trays. Will not crack or break like factory style trays with redirect curve. The tray is designed for a quick install/removal for engine builders and checking bearings where time is an important factor. A crank scraper is recommended with this tray. Dip stick tube (if used) must be welded to the external tube - or a bracket must be welded and/or bolted to the tray.

Windage tray may need to be shimmed to clear certain stroke/rod combinations. Shims should be made from rectangular stock - washers not recommended. Shimming more then 1/4" may not allow the oil pan to fit. Rotate crankshaft several times and check for clearance. It may be necessary to straighten louvers to clear connecting rods. Tray may need to clearanced by bending for certain oil pumps. It is best to fit all components. Tray may be mounted with allen socket bolts, or pan head bolts. Regular 5/16 bolts with 1/2 hex head will not allow a socket to fit. Chrysler header bolts with a 7/16 bolt head will work. You may also use 5/16 carb studs and 12 point nuts from ARP. Grade 8 lock washers are also recommended.

The aftermarket WT4 windage tray will not hold the N300 in position like the TPP or stock type windage tray. Must modify the N302 lower tube or use the external dipstick with a Canton Oil Pan.

***When using splayed main caps bottom/side of tray will have to be cut to clear.


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  • 5.0 lbs.

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