Exhaust Manifold date
Thread Starter
7th Gear
Joined: Mar 2004
Posts: 7
Likes: 0
From: Pentenried Bavaria
Exhaust Manifold date
Hi,
i am looking for a correct set of exhaust manifolds for my BB LS5 Engine.
The Manufacture date of the block reads February, 27, 1970.
I know the correct casting numbers are 396 98 69 lh and 388 08 68 rh.
What casting date of the exhaust Manifolds is correct for that engine block?
I am confused, there are Manifolds with and without bores / threads for the air in the exhaust ports.
which one´s are correct for my engine?
Thank you in advance for your support
OLI
i am looking for a correct set of exhaust manifolds for my BB LS5 Engine.
The Manufacture date of the block reads February, 27, 1970.
I know the correct casting numbers are 396 98 69 lh and 388 08 68 rh.
What casting date of the exhaust Manifolds is correct for that engine block?
I am confused, there are Manifolds with and without bores / threads for the air in the exhaust ports.
which one´s are correct for my engine?
Thank you in advance for your support
OLI
Drifting
Joined: Jun 2012
Posts: 1,990
Likes: 183
From: Port St. Lucie Fl
Hi,
i am looking for a correct set of exhaust manifolds for my BB LS5 Engine.
The Manufacture date of the block reads February, 27, 1970.
I know the correct casting numbers are 396 98 69 lh and 388 08 68 rh.
What casting date of the exhaust Manifolds is correct for that engine block?
I am confused, there are Manifolds with and without bores / threads for the air in the exhaust ports.
which one´s are correct for my engine?
Thank you in advance for your support
OLI
i am looking for a correct set of exhaust manifolds for my BB LS5 Engine.
The Manufacture date of the block reads February, 27, 1970.
I know the correct casting numbers are 396 98 69 lh and 388 08 68 rh.
What casting date of the exhaust Manifolds is correct for that engine block?
I am confused, there are Manifolds with and without bores / threads for the air in the exhaust ports.
which one´s are correct for my engine?
Thank you in advance for your support
OLI
Race Director
Joined: May 2006
Posts: 18,694
Likes: 2,572
your engine didn't come with an air pump so the manifold wouldn't have the fittings for the connection. I have read for NCRS full credit the date has to be within 6 months of the final assembly date of the car.
Last edited by MelWff; Jan 25, 2019 at 05:34 PM.
