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Old 10-08-2008, 12:35   #1 (permalink)
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Erson rocker Assy.

Anybody know if they will fit under the stock 390 valve covers?
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Old 10-09-2008, 17:43   #2 (permalink)
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Re: Erson rocker Assy.

There were a few types of stock valve coversover the years. But they should fit ok even under the later Power By Ford type.
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Old 10-09-2008, 23:27   #3 (permalink)
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Re: Erson rocker Assy.

Are the earlier, boxier type more roomy, been a while since I've seen a pair of those. I just refurbished a pair of the Power by Ford covers.
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Old 10-11-2008, 17:51   #4 (permalink)
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Re: Erson rocker Assy.

Yes the early VC's have more room and they also don't have holes for the breather and PCV. No internal breather bafflels either. Early intakes have the oil fill tube on them and most used a rear road draft tube type breather off the rear of the intake. There is a steel mesh filled basket underneath that filters the expelled crankcase fumes. So the early valvecovers didn't need holes and baffles. Your VC's should be fine but every application is slightly different. So I'd just double check the baffles and side fit inside the covers for clearance. Just to be on the safe side. Worst case the baffles can be dimpled or removed if needed. Even better there are also thicker valve cover gaskets you can get or double up on the std store bought ones. DSC Motorsport Ford Racing Parts has a good selection of stuff. If yer lookin. He's a one man show, very good parts and prices.
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Old 10-14-2008, 08:17   #5 (permalink)
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Re: Erson rocker Assy.

Good info, thanks Dude.
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