Crossover Passages

[steven d. ferguson]

Tom sounds good to me. I plan to have my crossovers welded too.
I got the cast iron plugs from Edelbrock.

Arch,
In spite of any opinions I have ee'd you I will say that I've never put
together an engine with an aluminum manifold (& many steel ones too)
that I didn't block the crossovers. Like I said before, I think the
exhaust pipes join together so close behind the engine that they act
like a balance tube, negating the one possible side effect. Absolutely
no problems encountered ever!. On the coldest of days it might mean a
minute or two extra warm up time, but I have a suspicion that most of us
warm these things up even on hot days before driving. I hope this
solidifies your decision or helps in some way.
Steve Ferguson
San Diego

 

[bartz paul]

When I installed headers in Jan 1997, I eliminated the hot air pickup tube
that ran from the original exhaust manifold to the air cleaner snorkel.

Although I do very little cold weather driving, I have noticed no difference
in the engine operation regardless of either ambient or engine temperature.

Paul Bartz

From: Steven D. Ferguson
Sent: 10/25/99 10:36 PM

Tom sounds good to me. I plan to have my crossovers welded too.
I got the cast iron plugs from Edelbrock.

Arch,
In spite of any opinions I have ee'd you I will say that I've never put
together an engine with an aluminum manifold (& many steel ones too)
that I didn't block the crossovers. Like I said before, I think the
exhaust pipes join together so close behind the engine that they act
like a balance tube, negating the one possible side effect. Absolutely
no problems encountered ever!. On the coldest of days it might mean a
minute or two extra warm up time, but I have a suspicion that most of us
warm these things up even on hot days before driving. I hope this
solidifies your decision or helps in some way.
Steve Ferguson
San Diego