so here's the deal I have a (new) 1998 muscle motors 493 stroker kit that I plan to put together soon for my race truck, and the pistons have a .070 dome and we figure that the engine will have around 12.6 compression which translates to RACE gas only.
now I don't plan to drive this truck to much on the street but we do have a cruise nite about 3mi from me so some street driving probably will happen.

so should I just put it together and just step up for the race gas and limit street use?

or get some new pistons(10.5 to 1) and rebalance and sell the ross domed ones?

or cut off the .070 dome and get them balanced again?



Ron...

Sounds like your contemplating jumping over a dollar to save a dime. Do you plan on driving it on the street enough that the cost of new pistons and re balancing will be cheaper than the race gas you'd use on the street? Not to mention the lower performance of the lower squeeze.

Is E85 available in your area? That would solve the problem right there.

Kevin

Just run the domes. 99.9% of any of the modern dome pistons cant be milled off. They are hollow which makes good sense to save weight etc. Those old solid dome TRW's was thick enough to take a chain saw too and still be tough enough to run a 100 lb bottle of NOS through too

If your really wanting to get away from race fuel the only way is a piston swap. I set of super thick head gaskets might be half the answer your looking for. Just keep a 5 gallon jug on hand and mix it with High test pump in like a 4:1 ratio deal.

Even with 12.7:1 I would NOT be looking at running straight racing fuel anyways. Just really depends on what cam you currently have, what pump octane is available in your area vs what race fuel is available too.

just some

Is it going to have quench? Aluminum heads, quench, the right cam & you might be closer than you think... You'll still have to blend but not much...

More cam might help kill cylinder pressure & low rpm torque which with a 500" stroker just kills tires anyway..