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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

383Lt1 help

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Old Jun 16, 2007 | 07:09 PM
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Default 383Lt1 help
I have recently installed a 383 Lt1 in my Camaro.It has Scat 4340 forged steel crank,Scat 4340 h-beam rods,Speed-Pro forged flat-tops with 2 valve reliefs.The problem I am having is under hard acceleration the car smokes,I dont think it is coming out of the exhaust and Its blowing oil out of the valve cover breather tube hole and dipstick hole in block. Also car acts like it has a vacuum leak,It has a CC306 cam with1.6 roller rockers , power brakes work very little at low speeds and I am getting a MAP sensor code due to vacuum. Wondering if unadeqate breathing for crankcase cause too much pressure,has just factory pcv system no aftermarket breather.Approx comp. 11.75 to 1. Any help will be appreciated.
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Old Jun 16, 2007 | 07:13 PM
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When your car is idling and you take the oil fill cap of is there blowby coming out
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Old Jun 16, 2007 | 07:17 PM
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No,I have even run a crank case pressure test by drilling a hole in a oil cap and hooking up a vacuum/pressure gauge under hard acceleration only 1-2 psi.
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Old Jun 16, 2007 | 07:20 PM
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Do you have your pcv hooked up,is it working
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Old Jun 16, 2007 | 07:24 PM
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did you have to take the baffles out of v/c to clear your rockers and is it blowing oil out the dipstick itself or were it goes in the block
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Old Jun 17, 2007 | 07:37 AM
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im replying under a different name but it leaks where dipstick tube goes into the block under hard acceleration but not out of the end the tube
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Old Jun 17, 2007 | 08:00 AM
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Well that just needs to be sealed up , as far as smoking does it come out the exhaust or just under the hood
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