Whassup everyone? I am a newbie to this site, I have read threw many of other posts on here about almost the same dilemma I have. I have a 91GT with only a 105k on it and I believe one of the bearings is bad since the whining sounds comes from the main pulley which sounds like a I strapped a cat to it, when it warms up the sounds goes away but I get a major power loss after 3500 RPM. I decided to stick with 302 so I don’t have to change too much on the car, plus I would like to get a SC down the road. I was looking for some input on weather I should rebuild this motor or get a GT40 crate motor I found on the web that has:
compression ratio: 9.0 to 1
crankshaft: Nodular iron, 3.000" stroke
head, chamber size: GT-40 aluminum heads, 64cc
valve sizes (i/e): 1.940" / 1.540"
camshaft: B303, hydraulic, roller
camshaft lift (i/e): 0.480" / 0.480" hydraulic
cam duration (i/e): 224 / 224 degrees @ 0.050 lift
If I do go the GT40 crate motor route what would stock parts should I change to not have problems? I am already planning on replacing intake, injectors, radiator, ignition box, and getting a chip. The only thing I have on it our some Mac shorty headers and a Edelbrock 65mm TB. Any feedback you guys may have I would greatly appreciate it.
Thank you,
Jared
compression ratio: 9.0 to 1
crankshaft: Nodular iron, 3.000" stroke
head, chamber size: GT-40 aluminum heads, 64cc
valve sizes (i/e): 1.940" / 1.540"
camshaft: B303, hydraulic, roller
camshaft lift (i/e): 0.480" / 0.480" hydraulic
cam duration (i/e): 224 / 224 degrees @ 0.050 lift
If I do go the GT40 crate motor route what would stock parts should I change to not have problems? I am already planning on replacing intake, injectors, radiator, ignition box, and getting a chip. The only thing I have on it our some Mac shorty headers and a Edelbrock 65mm TB. Any feedback you guys may have I would greatly appreciate it.
Thank you,
Jared