Would a 383 tbi engine like this one -

http://cgi.ebay.com/ebaymotors/CHEVY...spagenameZWDVW

be street legal in my car? And about how much would it cost to have the engine swapped at a shop? Would my Hooker 2460-2 headers work on it?

Or would it make more sense to bore the L03 I have to 335? I think thats the limit on them, right?

Also, which one of these superchargers works on L03?
http://www.tbi-superchargers.com/

 

Regarding 383 on Ebay - cam selection is less than optimum for TBI system:

Speed Pro Camshaft & Lifters .420/.443 - 204/214 - 107 specs

Even though duration is kinda small at 050, the LSA is very small - 107 degrees. This cam is better suited for 305 carbed application. For 383-TBI application can use a bit more duration - for example 212-216 and more LSA. Wider LSA will result in smother idle for stock or near stock calibration. Look for LSA 112 to 117 range to keep Speed Density system happy at idle, or start investing in EPROM tuning equipment. For example I saw 383-TBI engine that calls for:
.050 Duration: 214° Intake; 224° Exhaust
Advertised Duration: 280° Intake; 290° Exhaust
Cam Lift: .295 Intake; .310 Exhaust
Valve Lift: .443 Intake; .465 Exhaust
Lobe Center: 107° Intake; 117° Exhaust
with 9:1 compression this engine should be capable 280 hp/380 ft. lbs.Torque with stock exhaust. For emission compliance I would keep my duration on lower side of scale, while having LSA above 114 degrees. Also, do a search here - I think there is thread that should point you into right direction. I tend to be a bit on conservative side of cam selection - it is way too easy to overcam. Going from 305 to 383 you can re-use your TBI, but get truck injectors and bump up fuel pressure. Eprom changes will be required to get optimum performance.

Your headers should bolt up World S/R Torquers heads - same pattern.

305 can safely bored to 060 - anything more would require wall sonic checking. There is no replacement for cubic inch displacement. A blower is fun if you have money for a complete system - would require extensive tuning.

 

Thank you, very imformative : )
Makes a little more sense now.

How many cu in would the 305 be if it was bored 060? And about how much do you think it would cost to have that done?

 

Tim

CID Bore x Stroke
305 3.736 x 3.48
315 3.796 x 3.48 (+0.060)
340 3.796 x 3.75 (+0.060, with stroker crank)
350 4.000 x 3.48
355 4.030 x 3.48 (+0.030)
383 4.030 x 3.75 (+0.030 with stroker)

IMHO it is cheaper to get a stock 350 or 383 vs. performing sonic testing (o measure cylinder wall thickness). In most cases 0.030 is maximum safe overbore for 305 while 0.060 is very dicey! Depending on your application (and your performance goals and budget) a 350 might be sufficient enough. What are you trying to achieve with your ride??

//RF

 

Im aiming for a 11 or 12sec street legal mean machine.