1974ta

Well the LS5 guys inspired me to start a new thread to try and see when the change over to the one piece shield started on sb 70s.

Mine is sn 11327. Best I can tell it was a one piece shield with open air cleaner. Only original shielding parts on it when purchased were the cover support brackets on the intake. They were the style with only a single weld nut on each bracket. This indicates a single piece shield. Bolts attaching brackets and intake were original so I went one piece. serial number is earlier than is typical.

Bill

kenba

I don't think it mattered whether it was a SB or BB on which air cleaner/ shielding came from the factory. It was about the time frame when they made a running change on the 1970'S for the air cleaner, shielding & front lower grill pieces. A lot of mid to late VINS have mix & match pieces of both. I believe the LT-1 was the only engine to get a open air cleaner no matter when it was built.

qtlow

14824 (July 9th)
L-46 engine

Dual snorkel/one piece shield.

Alan 71

Hi Bill,
WOW!
Regards,
Alan

Iceaxe

10234
L-46

Revi

9516 - One piece box. (Yes, I know the wiper control valve is wrong. It has been changed.)

1974ta

HI Alan,

Below is a pic shortly after I began work. I needed brakes so I had already done the brake booster.

The shield supports are there as when I brought it home. They are the style typically seen with the one piece shield. Yet mine seems early to see the one piece shield.

Bill

jr9170

Bill, great job starting the small block survey. Hopefully we get enough responses and compare the LS5 survey and small block survey....

jr9170

Ken,that's why I started the LS5 survey as there seems to be a lot of mix and match with the vin after about 12000. Really looking forward to the responses on this thread.

70Yellowbird

11083 - open element & box shield

1974ta

Hopefully we do get a lot of input. The change was approved in March 1970 so there is a lot of curiosity about when the newer shielding was first available on the assembly line.

Bill

1974ta

ttt:

Very interesting. Keep em coming.

Bill

jr9170

bradc6

My L-46, #4269, looks like this.

boat196

L46 #11437
Open element, three piece shield.

1974ta

Very close to my serial number.

Lets keep this going.

I am still not sure what to make of my 11327.

Do your supports have two weld nuts each for the wing nuts ?

Thanks,


Bill

boat196

The right side has two and the left has one. Maybe others will chime in on this.
Bob

1974ta

ttt

SB64

Hi Bill, nice job on the engine compartment. Looking at before and after. I want to take a look at my donor car which is a E69 just for curiosity sake to see the differences.
R

daytona yellow

L46 #11373
Open air cleaner with 3-pc shield