I need to know if an intake manifold for a 318 v8 will fit and work for a 273 v8 engine.. anyone know?

 

It should, the only differences I know of between small blocks are their bore and stroke, with the exception of the 318 poly block also called 318 wide block which is wider and has it's own unique intake manifold. The big blocks however come in 2 sizes B and RB which changes deck height and requires a spacer to use a B intake on an RB. Check Allpar.com just to be certain.

 

A 5.2 magnum intake might fit ,but not a 318. The intake bolts on a 273 head go in at the same angle as a magnum.

 

if it is a pre-1994 (non-magnum) 318, it should fit...all of the top end parts are interchangable within reason. unless you have stumbled across something like a W8 intake...

 

i know that dodge tried to make an engine with interchangeable parts as much as they could.. and i want a new 4 barrel intake, so its been a pain to figure it all out

 

Later 273's had the same intake bolt angle as 318 LA motors, I think. Also you will have to watch what manifold you use as the 340/360 heads had larger, taller ports. You can use them but you might have sealing problems plus turbulence at the step down from the runners to the ports. There are used small port 4bbl intakes on Ebay and the Edelbrock Performer is supposed to have a smaller runner.

 

i wouldnt mind using the Edelbrock performer at all. i guess i should jsut shoot them a call and see what they come up with.