330 balancer?

2blu442 · October 3rd, 2007, 06:41 PM

Hi All,
Today I drug home a 330 that I believe came out of a 1966 as it has #3 heads on it. While looking it over I noticed behind the crank pullys there appears to be no balancer. It has a 2 speed auto bolted to it so I've not looked at the back of the crank yet. Was the crank balanced differently on this engine? I've got a 330 in a 1964 F85 that also has #3 heads and it has a balancer that looks just like the ones on a couple 1967 425's I have. I've collected quite a bit of 1964-67 stuff in the last couple years but I still have a lot to learn about this vintage. John

October 13th, 2007, 08:16 PM

I have a 67 330 and what I read is that 's how you tell the difference between 66 & 67 was exactly that.I'm sure it had to be balanced without it.Check the pulkleys and see if they have any balancing marks

Dapapadon · October 14th, 2007, 08:48 PM

I got a chance to check two 330's today. The 67 (#3 heads) I posted a picture of and one that was removed from a 65 Cutlass (#2 heads). Both have harmonic balancers. They're both rather narrow as is the band of rubber in them, only about 1/8" to 3/16" wide.

I had the 66 Jetstar 88 out to get breakfast this morning. But forgot to check it. Not sure if I'd be able to see it though.

What was used in place of a balancer? Did the crank seal to the timing cover? If you get a chance could you post a pic.?

Don

October 3rd, 2007, 06:41 PM	#1 (permalink)
2blu442 Moderator Join Date: Sep 2006 Location: Medford, Oregon Posts: 2,261	330 balancer? Hi All, Today I drug home a 330 that I believe came out of a 1966 as it has #3 heads on it. While looking it over I noticed behind the crank pullys there appears to be no balancer. It has a 2 speed auto bolted to it so I've not looked at the back of the crank yet. Was the crank balanced differently on this engine? I've got a 330 in a 1964 F85 that also has #3 heads and it has a balancer that looks just like the ones on a couple 1967 425's I have. I've collected quite a bit of 1964-67 stuff in the last couple years but I still have a lot to learn about this vintage. John __________________ 1964 Cutlass Factory 4spd 1965 442 4spd 1967 442 Auto 1967 Cutlass Convertible 1967 Cutlass four door daily driver 1968 442 Auto 1969 442 W30 Auto 1970 442 4spd 1971 Cutlass Flat Top Wagon 1973 Che*vy 3/4 Ton 454/TH400 Tow Vehicle Only the tow vehicle is finished!

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October 13th, 2007, 08:16 PM	#2 (permalink)
millwrightrice Guest Posts: n/a	I have a 67 330 and what I read is that 's how you tell the difference between 66 & 67 was exactly that.I'm sure it had to be balanced without it.Check the pulkleys and see if they have any balancing marks

October 14th, 2007, 08:48 PM	#3 (permalink)
Dapapadon Registered User Join Date: Jan 2007 Location: Portland, OR Posts: 364	I got a chance to check two 330's today. The 67 (#3 heads) I posted a picture of and one that was removed from a 65 Cutlass (#2 heads). Both have harmonic balancers. They're both rather narrow as is the band of rubber in them, only about 1/8" to 3/16" wide. I had the 66 Jetstar 88 out to get breakfast this morning. But forgot to check it. Not sure if I'd be able to see it though. What was used in place of a balancer? Did the crank seal to the timing cover? If you get a chance could you post a pic.? Don