Right now i have a sbc 350 flat top with a 144 weiand blower and runs a 12.4 @ 113mph. Its not and ideal blower motor and am running 4 psi. The blower is good for 8 psi. with the right pistons and cam. The 350 wont last for ever and I dont know if it would be better (powerwise) to make a 383 with blower pistons and the blower or a 427 naturally aspirated. I really like the blower but its too small for a 427 I think. I need to do some homework. Either way I go the motor would be built on a aftermarket dart or world block. What combo will make more power??
Thanks

 

I'm too lazy to look it up, is it a roots blower? If so, go with the blown 383, I'm a sucker for a v8 with blower whine

 

yes its a roots, good point about the whine

 

i would probaly go for the 427, not the adverage engine for these cars, makes good hp/tq right off the bat, and you can sell the blower to put towards profit of the 427. theres also nothing like the rumble of an big block

 

Pretty sure the OP is talking about a 427 small block.

I would go for the 427. It may not make as much power (though it could) as the blown 383, but I think it would be much cooler. It would also give you a much better platform for making crazy power down the road. You may not be able to run the 427 blown now, but later on maybe you could afford a better blower setup.

 

383s are making some pretty good power these days. Its a popular choice. I would go with a 427 honestly. You wont make the power like a blown 383 will but down the road you will and you cant beat the sound of a big block with a nice heavy lift cam. The bigger the base the better so get your hands on the biggest base motor in your $ range. You never wanna get yourself stuck with the words" I wish I went bigger". Then you could always toss a blower on it down the road.

I have a 350 right now and am looking into doing a 454 swap down the line. But, I'm not done playing with the 350 so I have some time yet.