New Guy, just bought a 64 Convertible would like to keep a spare belt in the trunk. I hear that there are several makes of belt's BUT only a few that will hold up with the twist the belt needs to make. My 64 is stock engine and pully any help on the best belt for my 64. Frank

I prefer the belts that Clark's sells, but there are others too.

David Clamp


1965 Corsa convertible
140 4spd/3.55/AM-FM

"Victory is mine!" - SG

Warner Robins, GA (15 miles south of Macon)

Common question with many opinions but I like the Gates 3V560. I find them at NAPA but many places online have them too.

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Dave W. Gilbert AZ
66 Corsa 455 Toronado V8
65 Corsa 455 Toronado V8
66 Corsa 140 4-speed
65 Monza Sedan 110 4-speed w/A/C
65 Monza Sedan 140 PG w/A/C
65 Monza Sedan 110 PG
65 Monza Coupe 110 4-speed w/A/C

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Clarks belts are good. The Gates Industrial 3V560, available through real auto parts stores, is a good belt too. Both are like the original GM belt i.e. fully wrapped and relatively narrow at 3/8".

Craig N. Coeur d'Alene ID.
66 Black Monza 4-dr, 4.2L V8 49k
66 Monza 140/4 EFI 60k
65 4-dr 110/AC/PG (project)
61 Rampside
62 Rampside (almost done!)
64 GB -CrUnChEd (donor)

20 Tons of parts in boxes

Mine is from CU. I've never had an issue. I think it is more how tight/loose it is than what it is. But my experience is only with one belt.

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regarding tension: ignore the factory manual photo using the big pry bar. Tighten until you can still just turn the alt/gen pully with finger pressure. Maybe check a new belt tension after use for a few thousand miles. Spray it with silicone spray.

Regards,
Kerwin,
Valley Forge, PA
65 Monza 110 PG, Stinger wannabe SW 001

The standard Dayco, non-wrapped belts work on my van for 60,000 miles but I rarely take it over 4,000 rpm and shift normally. It has a mag fan and an alternator and the belt is tensioned so the alternator fan can be turned with reasonable pressure from one finger.

On our Ultra, I run wrapped belts due to the heavier load placed on it by the charging system that has to charge the house batteries. It is hard on the belt but for alternator load reasons and not speed or momentum. I've already replace it once and I've got less than 10,000 miles on it. It didn't fail but was very worn when I did.

Dan Kling
1961 Greenbrier Deluxe, 110 HP, 4spd, 3.89 stump puller
1963 Spyder Coupe, restored, converted to 4spd Saginaw
1967 UltraVan #299, The migration has begun, we're on the road again......Save the Whales!

Photos of our Greenbrier, UltraVan and work-in-progress @

[www.flickr.com]

Thanks to All who left their sugestions on the right Fan Belt for my 64. Ordered one from CLarks today. Frank

I just order today 6 3V560 belts from this company [www.vbeltsupply.com] and total price to my door was $38.61 and i been using these for 3yrs now never slipped once, thats $6.35 each not a bad price.

Thanks matchlessmo,

Just added another source of parts to my favorites list. I no idea these folks existed. They were on sale, @ $4.86 each. I bought a dozen for spares.

glad to help chet and shiping not bad either, did you like video of corvair 95 with truck tires i posted,