cool exhaust manifolds

[theothergarth]

Is there anything special about these? My machine shop loaned these to me for engine break in so I don't ruin my new headers. I thought they would look really cool cleaned up and was just wondering if they are just standard manifolds

 

[Dusteriffic]

Nothing special. They're on many late model small blocks.

 

[kursplat]

i gotta' ask...how does breaking in your motor ruin your headers?

 

[RustyRatRod]

Those are usually found on vans.

kursplat, if you break in a new engine with new ceramic coated headers, it will overheat, discolor and even permanently damage the coating. Since a new engine is always out of tune with timing and carburetor settings, it is never a good idea to break one in with high quality headers on it.

 

[kursplat]

kursplat, if you break in a new engine with new ceramic coated headers, it will overheat, discolor and even permanently damage the coating...

thanks, i love looking at pretty set of headers on a motor, but over the last 40 years they've alway's been a wear item for me :burnout:

 

[stroker_valiant]

This is very good advice! I didn’t believe the hype with breaking a motor in with ceramic headers, now I’m a believer. I have Doug’s ceramic D450 headers ($$$) on the stroker. I did the break-in with them on the car, and now 1, 3, 5 tubes are discolored and kinda flat grey in color. For the cost of these headers, I wish I would have listened to people telling me this!!

 

[theothergarth]

yup...just bought a new set of TTIs. I paid to much for them not to take TTIs warning seriously!

 

[George R]

Manifolds look similar to the ones on my 90 Dodge truck with 318.
Good idea using manifolds instead of headers. I'll have to remember that!

George

 

[theothergarth]

I have been really impressed with this shop I have been dealing with. When I asked around about good machine shops in my area, this place was the first one on the list every time. They have worked with me, loaned me the manifolds, a shaft to prime my oil pump and several other things. When the motor fires up with no problems I will be even happier!