Quote:
Originally Posted by j cAT
your 350cu engine no way has 250HP. more like 160-170 hp.
the 305 had about 130hp. this is why your not seeing a huge power increase , but still much improved over the 305 .
to get 250 hp you would need some engine work .replace the carb with fuel injection .
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Yeah i knew that, forgot to change that in my signature. At the time i read the specs from the wrong 350. But you say 160-170? All i can say is here are the specs the guy gave me when i bought it on craigslist. BUT i just noticed something when i searched the specs myself (
http://www.newgmengines.com/10067353.html), it says the base HP for this motor is 195 but its CAPABLE of "around" 250. So i guess the guy stretched the truth a little! I just checked my timing and for some reason it was a bit low around 5...and i'm in Maine now so maybe the elevation would affect the power since the timing was set in MA. I just advanced the timing i could spin the tires again so i'm happy for now.
GM long block part # 10067353 (I paid over $1200 and it fits all GM's from 1969 to 1986.)
Edelbrock carburetor #1406
Edelbrock Performer Intake Manifold #2101) and are installed onto motor. I paid over $350 for these."
Engine Name: 350 LM1
Horsepower: 249 HP @ 5,000 RPM
Torque: 304 Ft/Lbs @ 3,500 RPM
Compression Ratio: 8.50 to 1
Block: 4 – Bolt, 2 Piece Rear Seal, 4.000” Bore
Crankshaft: Cast Nodular 3.480” Stroke
Heads: Cast Iron, 76cc
Valves: 1.940” / 1.500”
Camshaft lift: 0.390” / 0.410” Hydraulic
Duration @ 0.050”: 195° / 202°