Crank swap for a 305 TPI
03-20-2002, 07:51 PM
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Car: 1995 Camaro Z28
Engine: 5.7 LT1
Transmission: T56
Axle/Gears: Strange 12 bolt w/ 4.11s
Crank swap for a 305 TPI
I was wondering if anyone has done or thought about swapping the crankshaft from a '94-'97 264 motor into a 305 block? I was thinking of doing this in my '85 Z. I think with good heads, hi-flow runners, base, plenum and a good cam this combination would really pull in the upper midrange and topend.
03-20-2002, 09:00 PM
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Car: 1995 Camaro Z28
Engine: 5.7 LT1
Transmission: T56
Axle/Gears: Strange 12 bolt w/ 4.11s
Why would it be so bad? As long as its a newer 305 block with the 1 piece rear seal it'd be Ok. As for power characteristics IDK. I tried the combo on Dyno 2000 and my power peak would be around 5700 rpms. Thats a little high for TPI I think.
03-20-2002, 09:13 PM
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Car: 1995 Camaro Z28
Engine: 5.7 LT1
Transmission: T56
Axle/Gears: Strange 12 bolt w/ 4.11s
Why would it be so bad? As long as its a newer 305 block with the 1 piece rear seal it'd be Ok. As for power characteristics IDK. I tried the combo on Dyno 2000 and my power peak would be around 5700 rpms. Thats a little high for TPI I think.
03-21-2002, 12:30 PM
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Hey! better yet, offset grind the crank and use early small journal rods to give you a stroke of 2.9x. I'll bet if you try hard enough, and spend lots of money, you build a 25x c.i. TPI small block with 250 lb-ft and 200 hp. 
03-21-2002, 01:16 PM
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Car: 2002 SOM z28
Engine: LS1
Transmission: T-56
Originally posted by CMyZFlyByU
I tried the combo on Dyno 2000 and my power peak would be around 5700 rpms.
I tried the combo on Dyno 2000 and my power peak would be around 5700 rpms.
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