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#1
07-16-2014, 07:52 PM
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harmonic balancer bolt
Hi,
I have an Eagle stroker crank EAG-104004250 for the 400 and lost my harmonic balancer bolt. I thought I had found another one but it doesn't fit the Eagle crank. Does this crank use the stock harmonic balancer bolt size? Which I think is 5/8"-18 x 1 3/4? Thanks, Ralph
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1972 LeMans 461 stroker 10.3:1 Edelbrock D ports Scorpion 1.5 rockers Comp Cams "Stump Puller" roller Holley Ultra Street Avenger 770 Ram Air III exhaust manifolds 2.5" pipes Dynomax VT w/crossover Edelbrock Performer RPM TH350 2.78:1 10 bolt |
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#2
07-16-2014, 08:00 PM
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It should take a stock bolt. Those cranks I have used in the past took stock bolts.
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Paul Carter Carter Cryogenics www.cartercryo.com 520-409-7236 Koerner Racing Engines You killed it, We build it! 520-294-5758 64 GTO, under re-construction, 412 CID, also under construction. 87 S-10 Pickup, 321,000 miles 99Monte Carlo, 293,000 miles 86 Bronco, 218,000 miles |
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#3
07-16-2014, 08:03 PM
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ARP makes a nice one part # 190-2502
Charles
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68 Firebird. IA2 block, 505 cu in, E-head, Solid roller 3650 weight. Reid TH400 4:11 gear. 29" slick. Best so far 10.12@133 mph. 1.43 60 ft. 76 Trans am, TKX .81 o/d, 3.73 Moser rearend, 468 with KRE D-ports, Doug headers, 3" Exh. |
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#4
07-16-2014, 08:10 PM
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Balancer bolt...
The bolt is 5/8-18 x 1-5/8 and torqued to 160 ft lbs. If you want use the ARP bolt # 190-2501. If you use the ARP bolt torque it to 180 ft lbs as it is much stronger than the grade 8 factory bolt.
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"Three may keep a secret, if two are dead" ~ Benjamin Franklin ~ |
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#5
07-17-2014, 07:12 AM
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i also use the ARP bolt no problem
and had a stock one as well with no problem and so have some of my friends, but then again that was years ago so maybe somethings changed if you have a new crank the ARP bolt is BEEFIE, not to mention the 5/8 head is so much easier to use when all pulleys/shrouds/brackets are installed and in the car |
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#6
07-17-2014, 08:06 PM
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Harbor Freight has a 3/4" drive 50 to 300 ft. lb. torque wrench that works well an isn't too spendy at $80.
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http://www.pontiacpower.org/ |
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