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#1
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What balancer?
Building a 4" stroke 400(69) and want to replace the factory balancer. Who makes the correct 4 hole balancer? The only correct balancer I seem to be able to find is Fluidampr. Are there others? Thanks.
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#2
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summit had a nice 4 bolt balancer i think it was a power bond in disguise
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1969 carousel red firebird 455, richmond 5 speed 1964 540 gto 1971 lemans sport convertible 1972 Maverick under slow construction |
#3
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Romac
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466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2 373 gears 3200 Continental Convertor best et 10.679/127.5/1.533 60ft 308 gears best et 10.76/125.64/1.5471 |
The Following User Says Thank You to ta man For This Useful Post: | ||
#4
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BHJ also makes a correct 4 hole balancer for the Pontiac. It is designed to be an interference fit, so depending on your crank snout dimensions, you may need to hone the balancer slightly.
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-Jason 1969 Pontiac Firebird |
#5
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Thanks JLMounce
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#6
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I don't think Fluidamper has the correct pulley bolt pattern.
Summit's house damper was made by Pro-Race. Very nice piece and lines up with stock non-AC pulleys. |
#7
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I currently have a Romac on my 326, made a difference in smoothness compared to my 50 yr old factory damper. I have a 1971 pulley setup, fit perfect. Didn’t have to clearance the pan or alter the pulley in any way. It will need to be honed for your crank.
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67 LeMans, 326, M20, 3.31 12 Bolt |
#8
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Thanks for the responses...now it's time for the search.
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#9
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Another vote for Pro-Race for a quality unit that fits the stock pulleys, crank snout and 11 bolt timing cover properly.
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I could explain all this to the girl at the parts store, but she'd probably call the asylum. White '67 LeMans 407/TH350/Ford 3.89... RIP Red '67 LeMans. 407/TH400/Ford 3.25 |
#10
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I use a BHJ and have had no problems running to 6800 rpm.
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1967 Firechicken, 499", Edl heads, 262/266@0.050" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. 10.01@134.3 mph with a 1.45 60'. Still WAY under the rollbar rule. |
#11
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So far...
Romac.................RMA-NA0223AA........$288 Power bond.....PBB PB10565ST.........$168 Power bond.....PBB PB10565SS.........$241 Pro Race..........64275............................... ...$348.35 BHJ......................PO-IB-7........press fit BHJ......................PO-IB-7-S...slip fit I need to call BHJ for pricing. So the question is....pros and cons? |
The Following User Says Thank You to gtospieg For This Useful Post: | ||
#12
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Quote:
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#13
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If you are going to use a Factory A/C pulley BHJ can add a slight 45 degree bevel to make it fit better. Their later versions also have something to help prevent outer ring rotation. they can add that to an earlier one.
I have a Romac I've never used-it just looks awful small.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
The Following User Says Thank You to Skip Fix For This Useful Post: | ||
#14
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I have always liked my Romac I purchased years ago, probably back in the eary-mid 2000's for my 461. I bought the Steel/Aluminum Outer Shell version. It has been flawless.
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1978 Trans Am Pump Gas 461 Stroker |
#15
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ATI for me.
TV
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#16
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ATI for me. But I run boost with Vortech 10 rib belt.
TV
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#17
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I would have updated this post yesterday but I couldn't get on the forums.
The BHJ balancer was $677.50 from BHJ and $535 from Nitemare. They only offer the slip fit balancer as a special order. (you should be using a press fit anyway) Skipfix&Dragncar...I spoke with BHJ out in California and he gave me Darrins # at Nitemare. I spoke to Darrin and BHJ definitely seems like the way to go, especially if you're planning to have AC. Does any other tool work for installing the balancer or do you have to use the Moroso tool? According to Darrin, "Powerbond ,Romac and Prorace are all offshore balancers". |
#18
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Romac is offshore, but it’s made in Australia. I’d wager Powerbond is made in China, not sure about Prorace. That’s a big reason I went with Romac.
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67 LeMans, 326, M20, 3.31 12 Bolt |
#19
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Quote:
Definitely measure your crank snout and the balancer. I want to say that Darrin wanted around .007 interference fit on this. On my stock 455 crank, I didn't need to have the balancer honed. If you have an eagle crank, you may need to do so.
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-Jason 1969 Pontiac Firebird |
#20
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I have a FluidDampr on my 455. But to be honest, I can't remember if I had to adjust the bolt pattern at all or not. It's been a few years now
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