Author Topic: 1986 305 stock specs  (Read 5743 times)

Offline 86SilveradoEric

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1986 305 stock specs
« on: November 12, 2003, 01:36:00 AM »
I was curious if anyone here could tell me a site I could look at to get all the specs for my engine.  I was curious of the stock HP and torque and all the rest.


Offline shaky bonez

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81
« Reply #1 on: March 13, 2004, 11:53:00 AM »
im looking at getting an 81 and was wondering the same thing...


Offline stepside454

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305
« Reply #2 on: March 13, 2004, 11:59:00 AM »
stock hp for 81 305 is 150@3800 RPMs for 8.5:1 305s  165 @4400 for 9.0:1 305s (most likely its a 8.5:1)
stock TQ is 240@2400 for both.
 specs for 86 is the same.


Offline shaky bonez

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81
« Reply #3 on: March 13, 2004, 12:38:00 PM »
thanks again there stepside!  


Offline 78chev2bnice

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what about a 350
« Reply #4 on: March 14, 2004, 12:59:00 PM »
Anyone know what the HP rating would be for a 75 350.  I read somewhere that it was 155 but thats what it is for a 305.  So if anyone know please let me know.


Offline stepside454

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350
« Reply #5 on: March 14, 2004, 09:07:00 PM »
I show 155 hp @ 3800 & 245 ft. lbs. of torque @ 2400 for 75 4 barrel 350


Offline 78chev2bnice

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HP rating
« Reply #6 on: March 15, 2004, 10:11:00 PM »
Was that rating off the crank or was that done to the tires?  


Offline stepside454

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at the crank
« Reply #7 on: March 19, 2004, 03:31:00 PM »
thats at the crank