1 of 12 made...

nope, not from the factory. Lingenfelter, Hennessey, and a few others made some high hp number stroker LT4's.
 
I thought some of the lt1 firehawks were rated at 425hp. Lt4 package like the 96-97 slp stage 3 ss camaros? Im not sure but as much as i hate optispark ign. if there wasnt the 285hp lt1s then you guys wouldnt be were your at with all aluminum pushrod ls engines. They were definatly bad ass in the day and also paved the way.

who says an LT1 has to have an optispark?

Have you ever dealt with an OPTI personally anyway?

looks like a nice car, im just not a huge fan of the formulas
 
who says an LT1 has to have an optispark?

Have you ever dealt with an OPTI personally anyway?

looks like a nice car, im just not a huge fan of the formulas

LT1's do have opti sparks.. my bro had one and 4 opti's per summer due to the cam shaft and moisture building up. You can change it over to ls style conversion with coil packs but you still use part of the opti, which is the wheel and that can go bad..
 
yeah I know that they come factory with them :lol:

but you no longer have to use the opti at all. Mine is run with a 24x crank sensor and a 1x cam sensor in a special housing. It has a 2002 LS1 PCM. OPTI is totally off the motor

EDIT: my opti never gave me problems either, it was a low mileage car however.
 
Last edited:
1x_LT1_cam_housing_kit_small.jpg
 
^^exactly what I have from EFI connection.

now it is just basically a reverse cooled EFI SBC being run with a fairly decent management system.
 
Shit, we didn't have that until about a year ago so you definitely did the right thing. :lol:

Lol, that's what i'm saying.. Val's LT1 ran strong but just couldn't take the opti maintenance. We drove his car to the track in 1999 with slicks in the trunk and changed them there and ran 11.1 with a 4l60e trans in it and a 383 stroker, N/A. Car was fun, but when we got home, opti spark needed changing.
 
Lol, that's what i'm saying.. Val's LT1 ran strong but just couldn't take the opti maintenance. We drove his car to the track in 1999 with slicks in the trunk and changed them there and ran 11.1 with a 4l60e trans in it and a 383 stroker, N/A. Car was fun, but when we got home, opti spark needed changing.

I've personally never had a problem with an opti, but high rpm kills them and I turn mine pretty high. Thats why I am making the conversion and ditching the opti.

The 96+ pcm only has tables to 7100 rpm as well. and the earlier pcms would actually just hit a wall at that rpm. With an LS1 pcm I wont have to worry about that limit, its better all around. Plus HP Tuners/EFI Live is 1000x better than tuning with C.A.T.S
 
I've personally never had a problem with an opti, but high rpm kills them and I turn mine pretty high. Thats why I am making the conversion and ditching the opti.

The 96+ pcm only has tables to 7100 rpm as well. and the earlier pcms would actually just hit a wall at that rpm. With an LS1 pcm I wont have to worry about that limit, its better all around. Plus HP Tuners/EFI Live is 1000x better than tuning with C.A.T.S

X2 - but I like everyone else thinking my car is going to blow up if i rev over 6k :lol:

I also think auto cars with big stalls are hardest on optis - when high RPM is maintained the entire length of the track, that heat builds up.

sadly my car is in the shop for the same reason as that LT4 :(
 
who says an LT1 has to have an optispark?

Have you ever dealt with an OPTI personally anyway?

looks like a nice car, im just not a huge fan of the formulas

Yes i have. Certifeid Mechanic that was a heavy gm mechanic for a few years. And grew up with Lt1s that all had opti spark issues until i repaired them. About 15-20 of them anyway.
 
Last edited:
Yes i have. Certifeid Mechanic that was a heavy gm mechanic for a few years. And grew up with Lt1s that all had opti spark issues until i repaired them. About 15-20 of them anyway.

wasnt doubting you, im not for a second going to try to make the opti seem like its a good thing. But its really not as bad as some people make it out to be. I have never had an issue with one, but do understand that others arent as lucky
 
Back
Top