fast.asleep

I’m trying to decide between a blower or a crate engine for my modified l98. It looks like the costs are similar. The engine has aftermarket heads, cam and intake but a stock bottom end.

Any advice would be appreciated

topfuel67

How about pulling the engine, have the short block rebuilt with forged blower pistons and then do a blower. You'll get the most power out of it and a dependable set up. These short blocks are very reasonable to rebuild as far as expenses.

BlowerWorks

with TOPfuel 67

vader86

I would have the bottom end built to handle a blower first.

fast.asleep

If I go down the blower road building the bottom end is definitely part of the plan. Other than forged pistons what should I be looking at?

vader86

I would go with 4 bolt main splayed bolts and forged everything, but the pistons are the most important, and of course built with a specific CR in mind.

fast.asleep

On the other hand can I repliacate the hp gains of a blower by stroking my current engine?

vader86

It would be pretty similar yes, depending on exactly what the combination is.

topfuel67

To duplicate the power a blower would give you, your drivability would be reduced. You would need a loppy cam, high compression, etc. You'd get under 10 mpg. With a blower (supercharger actually) you could still be in the mid teens. Of course it depends on your set up.