[net.auto] What is a "street hemi"?

jeff@oblio.UUCP (Jeff Buchanan) (04/02/85)

In the '60's Chrysler introduced the 426 hemi which was available as
an option in some of its Dodge and Plymouth models.  It was commonly
referred to as the "street hemi".  I've never understood the term
"street".  Street as opposed to what?  Were there two different 426
Hemis?  If so, what was the difference, and was the other one available
as an option installed in a car?  If only one hemi, why the "street"
distinction?  Why not just hemi?
				  Jeff

shelby@rtech.ARPA (Shelby Thornton) (04/16/85)

> 
> In the '60's Chrysler introduced the 426 hemi which was available as
> an option in some of its Dodge and Plymouth models.  It was commonly
> referred to as the "street hemi".  I've never understood the term
> "street".  Street as opposed to what?  Were there two different 426
> Hemis?  If so, what was the difference, and was the other one available
> as an option installed in a car?  If only one hemi, why the "street"
> distinction?  Why not just hemi?
> 				  Jeff

If memory serves me correctly, there were three major differences between
the street and race hemis.  One, the compression ratio on the street hemi
was 10.25 versus the race hemi's 12.5.  Second, the street version cam was
.471 lift w/ 284 degrees of duration, the race version was much bigger, but I
have forgotten the numbers.  And finally, the induction systems were totally
different.  The street hemi came with in-line Carter AFBs (yeech)  and the
race hemi came with two Holleys (I forget the exact size) mounted on a
Magnesium cross-ram.

The $400 dollar option that voided the warranty (ya gotta love it).

				Shelby

P.S.	It's been said that Chrysler actually lost money on the hemi because
	it was over-engineered for the street and they never re-cooped there
	development costs, but I still think it was worth it!