Boost is boost 7psi boost is the same on a roots blower or a turbo.
12psi of manifold boost is the same 12psi wether created by a blower or a turbo.
Boost does not excessivly stress engine parts. But detonation does. Its the difference between pushing on something and smacking it with a hammer. Big difference.
You can bolt on a 142 on a stock block 305 and make 450+ hp at high boost with high octane gas
without fear of hurting a stock short block as long as detonation is avoided.
A turbo motor that detonates will self destruct just as quick as a supercharged motor will.
The basic weiand 142 SBC Kit retails for $2000 .. Get a 750 jet it and a blower friendly camshaft and home port the stock 416 heads. Bolt onto a stock dished piston 305. Get a timing retard control for high boost.
The car/truck will need a upgraded high flow fuel system (flow volume), reguardless.
7psi and easy timing on pump gas, 12psi for race gas. Its just that simple.
Keep it simple basic, affordable and fun.
To get a turbo system right for the motor so it is responsive and powerfill is a lot more technically involved than a roots blower, especially the 142 lil blowers. Its about as simple as it gets.
The only way you will hut a stock short block is by detonation. A blower and a turbo that are incorrectly tuned will cause engine destroying detonation equally. There is no difference to the engine. Detonation is detonation.
Last edited by F-BIRD'88; 01-01-2013 at 02:14 PM.