I know a stock bottom end of a 350 will spin to 5800 all day. Will the stock 305 do the same? Now it shifts at 4500, seems like there should be alot more. The stroke is the same (305 and 350), but are the journals different? Would that really matter?

 

I'm sure it doesn't matter if its a 305 or a 350. The bottom end isn't what you have to worry about, its the valves and springs. If you have stock springs, I wouldn't go past 5500. I rap my 350 with LT4 HOT Cam springs above 6000 whenever I race.

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1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission
Borg Warner 7.75" 9 Bolt Rear End with 2.77:1 Gears.

Current Mods: LT4 HOT Cam, Comp Cams 1.52:1 Roller Rocker Arms, Edelbrock TES 1 5/8" Headers, Catco 3" High-Flow Catalytic Converter, Hooker 3" Aerochamber Cat-Back System, Transgo Shift Kit, Performance Resource Chip, Accel Ignition, K&N Filters, JET TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET: 14.32 @ 97.7mph
(corrected for elevation)

 

My 305 goes to 6 Every Time I race.

Comp 981's for springs.



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60 Ranchero - Project ( Money Hole )
85 Sport Coupe LG4 - Daily Driver 14.82 @ 91.1 (faster than Ed)
Reader's ride -> My Ride

Just another Hot Rod kid, or thats what they all tell me.
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