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Originally Posted by PONTIAC DUDE
I personally see the IA 2 block with a 4.350/4.375 bore and a 4.500 stroke as the best all round Pontiac combo right now. N/A or Power adder.
The easist is the 4.350 bore with a 4.250 stroke for people not wanting to get into heavily modified heads, etc to make the 535 work efficiently. Ya can twist that combo (505) 7200 and not break a sweat.
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now lets say im building a road racer cannonbal stijl. and i whant a NA 535ci 750/850 hp engine that needs to run 7000 rpm for longer periods of time over a 5 day race will these combo,s hold up in the durabilety compartmend??also can i use the alu budler engine fore the same combo. ps 69 GTO 308 rear ratio /tremec 5 speed.......