84 Olds Cutlass Motor
 

I am new to stock eliminator racing and i am looking at getting a motor for my 1984 cutlass. After looking at the blueprints on NHRA the only difference between the Olds 305 and the Chevy 305 are the pistons...So my question is i found a 305 sbc for sale that runs good but it has flat top pistons and according to the olds 305 it had dish pistons is it legal to run the flat top pistons or do i need to find another motor??

Re: 84 Olds Cutlass Motor
 

The Olds actually should be a 307. Completely different animal, but good.

Re: 84 Olds Cutlass Motor
 

According to the stock classifications and engine blueprints the 305 was used as well...I just am going by the NHRA sheets thats what im trying to find out though haha im a little lost with this right now still trying to get all my info straight.

Re: 84 Olds Cutlass Motor
 

Wrong information

Re: 84 Olds Cutlass Motor
 

Thats my next questions...is it possible to change flat top pistons to dish pistons or is that major surgery? the motor im looking at is a 305/150hp motor and has the all the same numbers and everything for the 84 olds except the pistons are flat as i said and the 84 has dish top so i thought maybe i could just change those but i am just a hired gun so i dont know any technical info about it.

Re: 84 Olds Cutlass Motor
 

Assuming you are for real, let me tell you it's about $20,000 to $40,000 more complicated that just switching a set of cast pistons in a motor! But seeing as you are a professional hit man, money shouldn't be a big problem. No? Jim

Thanksgiving is over but somehow I still smell turkey!



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Re: 84 Olds Cutlass Motor
 

I was being serious i just drive never been a mechanic ...and i used hired in a sarcastic tone... but thanks for the info thats why i asked...trying to learn a little bit about all of this

Re: 84 Olds Cutlass Motor
 

If the blueprint specs. call for a dished piston (and I'm sure they do), then it has to be dished piston. No if's, and's or buts.

Are you sure the motor you're looking at is a flat top motor? Because a '82 - '84 Camaro 150 HP is a dished piston motor.

If you have questions, don't be afraid to ask. That's the 0nly way you will learn. Not everyone here is a wise guy.

Re: 84 Olds Cutlass Motor
 

If you're really serious save yourself a lot of money grief and aggravation and contact Tony Fillipone he is a member here. He has three race cars and last year was trying to give away his 1.00 under P/SA Cutlass 307 Olds roller motor ( not Chevy 305 ) for less than he paid me for the motor.

Re: 84 Olds Cutlass Motor
 

Flat top 305 was a Z 28 or Trans am option 82 - 84 years, I believe. Is this a stock eliminator prepared motor your looking at ? ---Trevor