19S vs 19A Engines?

nhopel · 11-10-2003

Can anyone tell me what are the differances between the 19s and the 19a,started the tear down on an 19a ,are there any changes betwen the two,any info would be a help

72Rallye · 11-10-2003

I assume you call it a 19A engine, because this number is stamped into the cylinder head. This number just means it is a 4-bearing head. The engine number is stamped into the engine block and will identify it as an 19S or 19E (or 19US, but never seen one).
Thomas
72 Rallye

nhopel · 11-10-2003

stamped before the block #is 19A are the parts interchangable thanks for all input

svopel · 06-28-2004

The engine number is stamped into the engine block and will identify it as an 19S or 19E (or 19US, but never seen one).

What is the difference in engine blocks stamped "19E" and those stamped "19S"?
I have three blocks stamped "19S" and one stamped "19E".

Thanks ...

Ken

Mach1Tom · 06-28-2004

Originally Posted by svopel

What is the difference in engine blocks stamped "19E" and those stamped "19S"?
I have three blocks stamped "19S" and one stamped "19E".

Thanks ...

Ken

Ken,

I believe the "19E" block is for the 75 Elec fuel injected cars. My new engine I built with the 265 Chevy pistons has this block. The only difference I noticed is the water plug near the oil send unit is 18mm instead of the14 mm plug that is in the earlier till 74 blocks. I think this is due to where the heater hose was moved to because of the fuel injection. I removed the heater hose nipple & put in the 18mm plug. A 2.2 block I checked also has the 18mm hose nipple on it.

~ Tom C.

svopel · 06-28-2004

Thanks Tom

That's the only difference visible to me also ... I was hoping for some kind of performance advantage ... LOL

Ken

RallyBob · 06-28-2004

Originally Posted by svopel

Thanks Tom

That's the only difference visible to me also ... I was hoping for some kind of performance advantage ... LOL

Ken

Performance advantage? Sure is, the block is lighter......
After all it has a 4mm larger coolant hole, right?

tekenaar · 06-28-2004

Originally Posted by RallyBob

Performance advantage? Sure is, the block is lighter......
After all it has a 4mm larger coolant hole, right?

As Bob always says, every little bit helps!

11-10-2003	#1 (permalink)
nhopel Opeler Join Date: Oct 2003 Location: Laconia NH 03246 Posts: 150 Classified Rating: 0% (0)	Unanswered: engines Can anyone tell me what are the differances between the 19s and the 19a,started the tear down on an 19a ,are there any changes betwen the two,any info would be a help

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11-10-2003	#2 (permalink)
72Rallye Opeler Join Date: Mar 2002 Location: San Diego Posts: 15 Classified Rating: 0% (0)	I assume you call it a 19A engine, because this number is stamped into the cylinder head. This number just means it is a 4-bearing head. The engine number is stamped into the engine block and will identify it as an 19S or 19E (or 19US, but never seen one). Thomas 72 Rallye

11-10-2003	#3 (permalink)
nhopel Opeler Join Date: Oct 2003 Location: Laconia NH 03246 Posts: 150 Classified Rating: 0% (0)	stamped before the block #is 19A are the parts interchangable thanks for all input

06-28-2004	#6 (permalink)
svopel Member Join Date: Mar 2002 Location: Westlake, OH (Cleveland) Posts: 132 Classified Rating: 0% (0)	Thanks Tom That's the only difference visible to me also ... I was hoping for some kind of performance advantage ... LOL Ken

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