400m c6

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Nov 12, 2005 | 07:34 AM

shawn47905

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From: indiana

400m c6

400m new everything bored 60 over, balanced,ss valves, polished and ported,rv cam,scorpion roller rockers, msd etc...

went for test drive, and the tach said 5000 @ 55mph and 4000 @ 45mph that is way wrong am i right? if so what could the problem be? i think my tranny is acting up. checked modulator and lines.put some mercron 3 in on accident tried to flush out

thanks in advance
-shawn

Nov 12, 2005 | 09:13 AM

1996pwrstrk

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From: Vilonia Arkansas

Do you have an aftermarket tach ? If you do check and make sure it's set on the V8 setting and not on the 4 or 6 cyl. setting . Does the engine sound like it is turning those kind of rev's?

Nov 12, 2005 | 10:31 AM

shawn47905

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From: indiana

it does sound like it's reving that high
i feel a vibration at about 30 mph

Nov 12, 2005 | 10:48 AM

53fatfndr

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From: Earth

What torque converter are you running? What is your axle gear ratio? Did you change any of these or leave them stock?

Nov 12, 2005 | 10:52 AM

shawn47905

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From: indiana

all is the same. all i did was change filter and front seal. worked great before engine rebuild

Nov 13, 2005 | 08:20 AM

shawn47905

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From: indiana

do you guy's think i should replace my tranny? or torque converter or both ? or can it be fixed for cheap any help is appreciated
-shawn

Nov 13, 2005 | 12:57 PM

53fatfndr

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From: Earth

I'm just wondering, since you replaced your tranny fluid filter is something didn't get put back together right and your somehow getting a restrictive amount of fluid or something. I really don't know. It's somewhat of a strange situation you have, someone here probably knows, they just haven't read your post yet. Have you checked to make sure you don't have a kinked fluid line going to your cooler, perhaps there is a blockage....? Fluid level? I'm just throwing out a bunch of things out there that I would check before I got to carried away. If it worked when you took your engine out, something happened somewhere along the line when you put it back together.