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Old 03-13-2011, 08:03 PM
crakr crakr is offline
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Default school work (engines)

Ok gear heads I'm going to school at Universal Technical Institute (UTI). We are fixin to enter the horespower phase of my education where we get a 350block and can do basically what ever we want to concerning this engine now I know that bolting on 305 heads will really boost the compression. My question is this if I bore this block out .060 and do all nessary mods to build a 383 stroker what would happen if I put those same 305 heads on said 383 stroker? Catostrophic failure or bad a$$ stroker the other guys want super chargers and turbo ch3gers but I want to do something that is low cost and will give me the most bang for my buck. Btw we will be putting these engines in t-buckets and strapping them to a dyno any help would be greatly appreciated thank you
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Old 03-13-2011, 08:18 PM
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I'm thinkin' a 3-angle valve job, some porting and larger valves.
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Old 03-13-2011, 10:43 PM
crakr crakr is offline
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I was hoping you would chime in maddog you and a few other guys kept me from taking a sawzall to the exhaust on my 05 when I had it so you thinks that will keep me fro my engine from spontaneous combusting thank you

Last edited by crakr; 03-13-2011 at 10:50 PM. Reason: didn't make sense (kept me saw)
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Old 03-14-2011, 12:24 AM
sinned sinned is offline
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The 305 cylinder head is the worst flowing cylinder head in the history of the small block Chevrolet. The only advantage to running it is that you will increase compression though any HP gains will be lost ten-fold through the poorly flowing head. There is not enough casting thickness in the port walls to port them enough to fix the inherent flaws.

Running a 400 crank/rods (aka poor mans stroker) and a nicely set of ported Vortec heads will boost the compression and flow much better. Though you need to buy custom pistons for ANY stroker, so you can specify the compression ratio anyways. Why the need to to use the combustion chamber size to bump compression?

An all out max HP engine...I would not build a stroker. They are good for torque but aren't going to win any HP wars or longevity battles. They also do not like to spin, you are severely RPM limited.

Go with a very good blueprinted .060 350, nice roller cam, port matched heads and intake, stick with 292 or 461 heads if you have access, and spend A LOT of time on the heads. Making big HP is all about getting air in and out. Small block Chevys LOVE big roller cams.
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Old 03-14-2011, 11:38 PM
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ok well we cant do any machine work to the block or heads any idea
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Old 03-15-2011, 12:46 AM
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No machine work at all? Do you have a budget? is this a real build or on paper?
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Old 03-15-2011, 02:26 AM
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No its a real build they said we can use spray and turbos and super chargers man that puts a damper on my plans
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Old 03-15-2011, 09:05 AM
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I've built a pair of 383 SBC strokers and I agree with Sinned. THe 305 heads will bump compression but they're severely restricted when it comes to flow numbers and that's where you make HP. I sat my rev limiter to 7000 and shifted around 6400 and it worked great for a drag car but something like a well built 355 or a destroked 400 would work better in a round track application where you need to make power up into the 8000 RPM range.
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