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Topic: Boring a 350

in Forum: C3 Engines

Boring a 350

Posted: 3/12/11 7:36pm Message 11 of 13
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Red Lion, PA - USA
Joined: 10/27/2006
Posts: 1182
Vette(s): 1974 White 350 Corvette, TH400 Automatic 1972 Tangerine /Go Mango Convertible 383 Stroker, 2004r Automatic
So what are the thoughts on motor mounts. With hood clearance so tight should I be safe and go with solid mounts so I never have to worry about a broken motor mount allowing the engine to come up and hit the underside of the hood? I wonder how much vibration I would have with solid mounts. Will solid mounts put any extra stress on the chassis from twist. Or should I just go with a good poly mount?
Rodney




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Boring a 350

Posted: 3/13/11 4:13am Message 12 of 13
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Phoenix, AZ - USA
Joined: 3/13/2004
Posts: 537
Vette(s): 1975 Stingray Nomad Wagon, with Daytona front, custom hood scoop, dual side vents; 420HP 350; Doug Nash 5 speed; 1980 rear end W/4:11 gears; Cherry Red metallic paint.
<groaner alert> The single greatest boring tool I have ever known is my brother, he'll bore anything.  If you like, i will PM you his number.  Just call him up, put the phone next to your block, he will bore it in seconds.  Just don't leave the phone there to long, he may bore it to death.  I have to admit, once he starts to bore you,  it makes you want to run faster than you ever have before!LOL.  (sorry, i just couldn't resistTongue)


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Boring a 350

Posted: 3/13/11 8:40am Message 13 of 13
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


Solid engine mounts will definitely make a vibrator out of it. I've had solid mounts on many of my street cars in the past, and they DO transfer a LOT of vibrations to the chassis, and therefore into the cabin....especially at idle. If the cam is not too "lumpy", it's not so bad, but if you got a rock-n-roller, it can get annoying pretty quick on a car you drive a lot. Then again, not having your air cleaner hold down bolt poke a hole in the hood is worth the trade off if clearance is that tight....



Joel Adams
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in Forum: C3 Engines


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