Thread: 305 in a bucket?

Tweet

Om my 305 I bored it .060 over with the XE 262 cam with the dual plane intake and 600 cfm carb. Ran great and a little over 300 HP. Also ran a 3 deuce set up with 3 rochester carbs and that ran even better, but now am running 2 500 edelbrock carbs and have yet to test them. Probably toomuch carb but have to wait till spring to find out. I think the 305 is a great little engine and can be made to perform and keep up with your stock or slightly built 327 and some 350's. Course thats just my 2 cents.

Originally Posted by chevy 37

Om my 305 I bored it .060 over with the XE 262 cam with the dual plane intake and 600 cfm carb. Ran great and a little over 300 HP. Also ran a 3 deuce set up with 3 rochester carbs and that ran even better, but now am running 2 500 edelbrock carbs and have yet to test them. Probably toomuch carb but have to wait till spring to find out. I think the 305 is a great little engine and can be made to perform and keep up with your stock or slightly built 327 and some 350's. Course thats just my 2 cents.

What cylinder heads are you running on your 305? And are they ported out ?

I have been running stock heads that I ported but I just put on a set of Sportsman ll which should increase my HP and torque by 40-50. Next is a gear chage to 3:55 and should be able to get into the low 13's with it.

Originally Posted by chevy 37

I have been running stock heads that I ported but I just put on a set of Sportsman ll which should increase my HP and torque by 40-50. Next is a gear chage to 3:55 and should be able to get into the low 13's with it.

I.M.O.,those heads are about 3 sizes to big for your 305.
Did someone recommend those large heads??

That is some nice work. You are a good man. And by the way . I am not a big fan of 305 heads . And it is true that a lot of the 305 #416 and #601s are cracked . I bought a set from a shop on E bay . I was going to ues them on my original 305 to do a build . They had new 184in/1.50ex S/S valves with screw in studs and guide plates . And both were cracked with repair made to them ? They never said that they were sending repaired castings ? Now they are bare and I am redoing them . I to also always bought heads bare . But this one time ! The last time . But if a guy has a good set of #416 or #601 heads they will work well for a 305 build after they have been ported . Like you I also do this work for a living 25 years . And for fun 30 years . And its still great to know more info on these engines . And I got my info on the S/R heads at www.worldcastings.com

Originally Posted by tango

That is some nice work. You are a good man. And by the way . I am not a big fan of 305 heads . And it is true that a lot of the 305 #416 and #601s are cracked . I bought a set from a shop on E bay . I was going to ues them on my original 305 to do a build . They had new 184in/1.50ex S/S valves with screw in studs and guide plates . And both were cracked with repair made to them ? They never said that they were sending repaired castings ? Now they are bare and I am redoing them . I to also always bought heads bare . But this one time ! The last time . But if a guy has a good set of #416 or #601 heads they will work well for a 305 build after they have been ported . Like you I also do this work for a living 25 years . And for fun 30 years . And its still great to know more info on these engines . And I got my info on the S/R heads at www.worldcastings.com

If we pool all are know how we can always learn a lot.

Erik now tell me about that bad a$$ 540 that you built . I built a few 396-402 BB chevys . But man what kind of power is that 540 making ? And the heads on that most have some BIG valves and PORTS !

Originally Posted by tango

Erik now tell me about that bad a$$ 540 that you built . I built a few 396-402 BB chevys . But man what kind of power is that 540 making ? And the heads on that most have some BIG valves and PORTS !

Dart block,I can't remember exactly but it is a mix of Eagle and Scat rods and crank,JE blower pisons,I have a few cams in it.
The last was a custom ground Comp. cam .715/.715,duration at @.050 is 278/288 cut on 114 L/S.
The heads are Brodix BB2X that have a bunch of port time on them.
I think final port volume is around 380 cc's.
The current blower is a 10-71 from the Blower shop.
It has twin 1050's dominators from Pro-systems.
As far as hp I would say it makes an honest 500 hp. or maybe a little more.

Do you drive that car on the street ? I think it has more like 800HP with that blower on it . And around 550HP with one carb on it ! WOW One day I want to run a blower on a 350 for my 1983 Monte . But I want one that will fit under the hood . This would be a good build for the 1979 350 4 bolt main that I have ??

Originally Posted by tango

Do you drive that car on the street ? I think it has more like 800HP with that blower on it . And around 550HP with one carb on it ! WOW One day I want to run a blower on a 350 for my 1983 Monte . But I want one that will fit under the hood . This would be a good build for the 1979 350 4 bolt main that I have ??

It really is a pain in the a$$ to keep valve springs in it.
If I built another engine for it I would build a 496 with a 8-71,and a "street roller" cam and a set of 335 AFR heads and build it to run on pump gas.

Originally Posted by tango

Do you drive that car on the street ? I think it has more like 800HP with that blower on it . And around 550HP with one carb on it ! WOW One day I want to run a blower on a 350 for my 1983 Monte . But I want one that will fit under the hood . This would be a good build for the 1979 350 4 bolt main that I have ??

look at a whipple <twin screw> supercharger you might like them