305HO or NOT???

Is the 305HO the LG4 or L69? When I did and VIN decoder it showed the my engine is a LG4 but the decals and such on the car says it's a 5.0 HO, so I am a bit confussed. Maybe it's just late and I need to go to bed. LOL

1984 Z28- 8th letter in my VIN is "H".

Did they do something in 1984 that I don't know about?

Thanks
UGLY.....

Hey, i also have a 84 Z28 H.O. the H.O. is the L69 which was 190 hp and the LG4 was the other engine offered for the Z28 rated at 150 hp.

Dave

Dave,
Yeah I know. What I am trying to figure out is why my vin# tells me it's a LG4 with the number eight letter being a "H". If it is a HO it should be a "G" which idicates it's a L69.

All of the decals and such say it's a HO and the VIN says it's a LG4.

Thanks
Ugly

you can buy HO decals and slap them on the car.
Is the car fast?

If it's an L69, you will have a dual snorkel air cleaner, your carb will have "DR" secondary metering rods in it, the Y-pipe will be 2 1/4 inch mandrel bent pipe, the catylitic converter will be a Corvette "wide mouth" design with oval entry & exit pipes, four-bolt flange style. It will have a knock sensor screwed into the block on the passenger side water jacket. Your tach will probably show a 5500 RPM red line and will rear to 8000 RPM. Your car will more than likely sport rear disc brakes and a 32mm swaybar.

HTH,
--Dan Burk

Well, The mystery is solved....

It's not the HO. I looked up the casting number on the block and it ended in "SDN" whick tells me it's a LG4. Someone played a sick joke on me and put the decals on it and made me think its the L69.

Thats ok, I'll still keep it, might even leave the decal on the dash just cause it looks cool.

I appreciate everyone's input.

Wonder what else I will find????

Later
Ugly

Another uninformed buyer not checking the Vin for engine type but relying on the sellers info and car badges. :eek: :eek: Score: Buyer (O) Seller: (1). :o

Just FYI:

The VIN will show a 7 to designate an L69.

Larry

Well, The mystery is solved....

It's not the HO. I looked up the casting number on the block and it ended in "SDN" whick tells me it's a LG4. Someone played a sick joke on me and put the decals on it and made me think its the L69.



Waitaminute. Since when does the 305 H.O. have its own unique engine casting number? Both the LG4 and L69 use identical engine blocks. The difference for 1984 shortblocks is in the pistons and camshafts.

What could you tell with regards to the clues I gave you?

Just check the Vin number as previously stated, eighth number is (G) for 305 HO.

Just check the Vin number as previously stated, eighth number is (G) for 305 HO.

As stated in his very first post, he did just that, which is why he was curious and posted in the first place. In the unlikely event someone swapped out the powertrain, I think some independent verification would be in order, by looking for the most obvious of the L69 speed parts.

Did the HO's have the aluminum intake manifold as well?

Did the HO's have the aluminum intake manifold as well?
Yep. They sure did. I sold mine to robvas.

The LG4s had aluminum intakes, too, though, AFAIK. My '81 2nd gen LG4 did.

Just check the Vin number as previously stated, eighth number is (G) for 305 HO.
Your tach will probably show a 5500 RPM red line and will rear to 8000 RPM. Your car will more than likely sport rear disc brakes and a 32mm swaybar.

I ordered my '83 L69 car from the factory and haven't touched it. Here's what mine has:

The VIN engine code is a 7. I wonder if the digit could have been different for other years?

The tach is a 5000/7000 RPM unit. Again, did they change in later years?

It has rear discs that were an option that could be ordered for any Z/28.

"7" is what GM used for the crossfire engine. Your car is strange.

"7" is what GM used for the crossfire engine. Your car is strange.

1982= eng code (7) for 305 CFI LU5
1983= eng code (7) for 305 carb L69
1984= eng code (G) for 305 carb L69
1985=same as above (G)
1985=same as above (G)
1986=same as above (G) last year for this engine.

This should clear up the confusion about the engine code in the Vin # for the L69....

1982= eng code (7) for 305 CFI LU5
1983= eng code (7) for 305 carb L69
1984= eng code (G) for 305 carb L69
1985=same as above (G)
1985=same as above (G)
1986=same as above (G) last year for this engine.

This should clear up the confusion about the engine code in the Vin # for the L69....
Also, the crossfire engines were coded S in '83.

Larry

Well, The mystery is solved....

It's not the HO. I looked up the casting number on the block and it ended in "SDN" whick tells me it's a LG4. Someone played a sick joke on me and put the decals on it and made me think its the L69.

Thats ok, I'll still keep it, might even leave the decal on the dash just cause it looks cool.

I appreciate everyone's input.

Wonder what else I will find????

Later
Ugly

Not that this will make you feel any better, but my 86 LG4 is the same way -- it is an LG4 per the VIN and PRO but someone slapped the 5.0 Liter H.O. stickers. I completed the "clone" with the dual snorkel.

Well it's good to see that I am not the only one that had decals slapped on their car. I was hoping that the powertrained had been swaped out but upon further investigation it's not. Not sure it I am an uninformed buyer or not, I guess I have been called worse.

Again, I thank everyone for their input. It has been a good learning experience

Ugly...

ha!!! my first car has an 84 z28 5.0 h.o. i beat a slew of auto 5.0 stangs in it! damn that motor smoked when i blew it at 186,000 miles. i pulled that car to a 15 flat at oceola speedway ten years ago!! loved that thing :cry: that was the start of camaro's for me. nice ride, keep it even if it isnt a h.o..