[jdsaengine]

This is an awfully old thread, just found it today and could not resist the input. I put a 425 olds out of a Delta 88 in my first T bucket. I figured it was much lighter than the 427. Put a Crower cam in it with solid lifters, redid the rocker arms, dual quad manifold with 2 holly's sitting sideways (they wouldn't fit end to end). This pic is from around 1971, my Dad and I

[twistedaxle]

Originally Posted by techinspector1

... the tetraethyl lead coated the valve and seat and acted as a dirtying agent, preventing welding at the valve/seat interface. Cool beans, Huh?

"Dirtying" is undoubtedly the operative word. The lead doesn't burn. So it coats everything it comes into contact with in the exhaust. Great for exhaust valves which lead hard lives. Not so great for catalytic converters, which also may lead equally hard lives but I have a difficult time forcing myself to care.

[bullheimer]

WOW! paint that t bucket blue with a spray can, make the olds a hemi instead, grow your hair about six more inches and add some sacks of chicken food in the back ground and it's ME IN 73!!!

oh yeah, see martinsrs posts on the 425, you should get it just in case an SR-71 comes up for auction!

[twistedaxle]

Originally Posted by jdsaengine

This is an awfully old thread, just found it today and could not resist the input. I put a 425 olds out of a Delta 88 in my first T bucket. I figured it was much lighter than the 427. Put a Crower cam in it with solid lifters, redid the rocker arms, dual quad manifold with 2 holly's sitting sideways (they wouldn't fit end to end). This pic is from around 1971, my Dad and I

That is one good looking engine.

As far as carbs go, you can fit two Carter AFBs fore-and-aft where you'll never get two Holleys to go. Somebody who deals in superchargers makes a manifold that will allow you to put two Holley carbs on top of a Jimmy blower. The name of the manufacturer escapes me at the moment; it looked like a big "Y."

Is it a problem to run Holley carbs when they're sitting sideways?