I was installing the Summit opitspark last night, when I started looking at it a little closer. I noticed that this thing is pretty much water tight save for the two vents. The cap is completely sealed around the connector and has rubber seals between the cap and body. You could easily wash your motor, and not worry about destroying it.

 

I haven't seen the Summit part, but the GM opti also has a seal between the cap and the body of the opti. I think for the most part washing the engine is safe except for opti sparks that are old and the possibility of the seal being cracked, brittle, shrunken, whatever is likely.
I've washed my engine a few times before I changed my opti out and it never missed a beat. If summit had one for the '94s I would have tried it.

 

Some are saying that the Summit is a rebadged Accel opti. I wonder if this is true?

 

Any pics of this summit opti?

 

that is a distinct possibility seeing as how summit and jegs don't actually make any products, they're just selling them under their own brand at a (typically) lower price.

 

that is very true. I could run down a list of parts that I have experienced to be another brand and of a relatively large price difference.

 

NO, I can try and get some later. The biggest change I can see is at the connector. It is completely sealed, whereas the GM opti is not. There's a gap around it on the GM opti. The only way for water to get in is thru the two vents.

 

Cool, thanks

 

i was thinking that too... since they look the same.

summit now sells their brand throttle body... looks alot like a bbk/edelbrock