ryanosborne

im ordering a acdelco opti from my local dealer and i was wondering what else i need to order with it to change it out?

RamAir95TA

iTrader: (2)

Besides little stuff like water pump gaskets, thread sealant, etc., nothing else from the dealer.

ryanosborne

and where should i get my timing set?

RamAir95TA

iTrader: (2)

You really should consolidate all of your questions into one thread. I can't keep track of what exactly you're doing, what optispark you have, what year car you have, what motor, what water pump, etc.

ryanosborne

1994 firebird formula, buying stock opti and stock water pump. i cant get a stock timing set because its discontinued

1993 z28 f1

iTrader: (6)

Hey:

Why not get a Chandler Motorsports Opti, an CSR EWP, and a double roller timing set. It would be cheaper and as good an OPTI and better money spent than the other stock stuff from the dealer.

Dub

JAKEJR

The Opti issue has been coming up a LOT on other Forums too. The general consensus is to only use an ACDELCO OPTI. Guys are posting about all sorts of problems when using other brands, even the MSD's model.

Best I can do is pass along what they're reporting: you can check Corvette Forum on the C4 Engine Tech board and LS1LT1.com LT1/LT4 board. A search will pull them up.

Hope this helps.

Jake

shbox

Who said? I just looked up all the numbers. They're still good.

ryanosborne

well at the only gm dealership in this town they said they are and they cant get it for me

shbox

Then, don't use them. Lots of places online to order from. Even places like Summit, etc, carry stock sets.

ryanosborne

summit carrys stock ones? because im ordering alot of stuff from them this week

ryanosborne

this timing set work? http://www.summitracing.com/parts/CLO-9-3151/

TABBED 5.3

iTrader: (1)

that seems pretty expensive for a timing set. if the motor is stockish you can get a set (chain/gears) from one of the local parts stores for around 90 bucks if i remember right. I asked them for a replacement set and it was a cloyes. hope this helps save you some money.

ryanosborne

would napa carry a good timing set for a stockish lt1?

shbox

Nope, won't work. That's for a vented opti. A 94 has a non-vented opti.

This would work and is basically a stock GM set.
http://www.summitracing.com/parts/LU...n/?prefilter=1

I thought they carried the GMPP stuff, but maybe not.

ryanosborne

but it says its for a 94? and that one says its for a 92, 93? mine is a 94. im confused

shbox

I know it is confusing. It all depends on which body style (Y, F or B) they are referring to. Anyway, look closely at the cam gear. The one I said would work has the splines in the center required to drive your non-vented opti. The 3151 does not and has a larger hole in the center meant for the vented opti.

1993 z28 f1

iTrader: (6)

Hey:

OP
This is most of what you need minus, OPTI vent kit, 95-97 OPTI cable harness, gaskets and seals.
You could also add 1.6 7/16" roller rockers, pushrods, 7/16" studs, and trickflow guideplates, but could be added later, and would have spent a little more than just buying the GM dealer stuff. You would have a newer style more complete upgrade rebuild kit. Just some info for you to ponder.

http://cgi.ebay.com/ebaymotors/new-o...Q5fAccessories

http://www.summitracing.com/parts/NAL-24502586/

http://cgi.ebay.com/ebaymotors/Cloye...mZ330455448374

http://img159.imageshack.us/img159/9710/tc1eh2.jpg
http://cgi.ebay.com/ebaymotors/LT1-t...ts_Accessories

http://cgi.ebay.com/ebaymotors/CSR-P...ts_Accessories

http://cgi.ebay.com/ebaymotors/CHEVY...ts_Accessories

http://cgi.ebay.com/ebaymotors/VALVE...ts_Accessories.

Dub

l 95 Trans Am l

iTrader: (5)

I bought a Delphi (AC Delco) optispark off ebay for 260 shipped

hitmanws6

iTrader: (20)

For optis if you are on a budget go with the chandler motorsports, but the delco seems to be the best all around. people seem to forget that that opti that went out years after the car was made and thousands of miles was an ac delco. the only upgrade you should make over the delco is the dynaspark, but those are geared for more racing applications