general stage 2 questions

[NICKG]

ok, i am thinking of oing a stage motor but i have a few questions
1: what is involved in converting a dry sump engine to wet sump?
is this what the dutweiler oiling system does?
2: what oil pan do you use?
3: what front cover ?
4: i found a few short blocks that have broze bushed lifter bores, is this useable and what lifter is correct?
5: what about using blocks with needle bearings for the cam? can these be used with standard cam beaings?
6: gear drives? or chain(keeping in mind that it will be a street engine)
7: what pistons should be used? can you have the existing hi comp. milled for use in a turbo engine?
8: finally on or off center 4.1 or 3.8?(i know on center is easier to find) new or used?

 

[EightSecV6]

1.)The Dut. system is an option as well as a single stage external pump
2.)You can use any wet sump pan (DeQuick, stock 14 bolt, modified stock etc)
3.)First you have to decide which type of oil pump you will use.
4.)Bushed lifter bores are ok, use a standard Buick roller lifter.
5.) Needle bearing blocks canot be easily converted back, the cam will have to be specially ground for the bearings.
6.) Chain
7.) ASA pistons can be used without milling them at all, a Busch piston will find a new home in the trash can.
8.)I prefer on center, new or used is fine, used will save you initial cost plus machine work.

Bill Anderson

 

[NICKG]

thanks

what about the 6 bolt mains? or the big 4.1? i see some of these are as big as 274". are these better ?

 

[S2V6RACER]

Cubic inches are obtained by the bore size and the stroke.

Stock 3.8 engine has a 3.40" stroke with a 3.8 inch bores.

The 4.1 block will yeild 252 Cubic inches with a 3.40" stroke and go up as the stroke increases. 4.1's are considered "standard" bore at 4.000 size. You can only get about 252" with a 3.8 block and a 3.625" crank if my memory is correct.

I personally think the Cross-bolted main blocks are cool, but depending on your HP level, not necessary.