I have a 1993 chevy s10 blazer and the previous owne said he put a 1996 chevy blazer 4.3 vortec v6 in it after the original went out, i did a spark plug and wire with cap and rotor. All the 1996 parts were completely different than the original that i ended up gettin, so know it fires then pauses fires then pauses and then doesnt then it does it again fires then pauses and i noticed the firing order is the same for both years

they should swap just fine. 1996 and on are interchangeable. 1995 could go either way. 1994 and older are interchangeable.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

utube site m.youtube.com has it shown as a 1993 chev s10 blazer 4.3 l vortec v6
so I would say that yes is the answer

Chevy Blazer Engine Swap Part 1 of 2 - YouTube

? 10:29
https://www.youtube.com/watch?v=Dt_7AKP2WcI
Aug 13, 2011 - Uploaded by Dave R
Replacing the engine in a mid-size Chevy Blazer 4x4 with oneout of a Jeep Cherokee 2wd. Original engine was low and motoroil and spun a bearing. ... Chevy Blazer Intake Gaskets Replaced & Cooling System Rebuilt - Duration: 16:45. by ... 4:02. 94 4.3l Vortec V6 GM (black motor) - Duration: 6:01. by ...

4.3 vortec engine removal - YouTube

Troubleshooting a Blown Head Gasket (GM 4.3L, 5.0L, 5.7L)

troubleshootmyvehicle.com > GM > 4.3L, 5.0L, 5.7L

Mar 28, 2011 - There are so many ways to test for a blown head gasket on your 4.3L, 5.0L, 5.7L GM van (or mini-van, pick up, SUV) that it can get confusing.

Chevy Blazer Coolant Leak (Intake Manifold) - YouTube

? 4:33
https://www.youtube.com/watch?v=SC4VXdt5wiE
Oct 9, 2013 - Uploaded by eyetotheworld
I have localized a coolant leak on my 2003 Chevy Blazer to thegasket of the intake ... Turns out that this is common among this particular engine both in the v6 & v8 sizes. ... The guy has been generous to detail his projects. ... 98 S10 Vortec V6 4.3 IntakeGasket Replacement Part 1 of 5 - Duration: 18:17. by ...

Chevy 4.3l v6 oil leak issue 2001 Xtreme Blazer - YouTube

? 6:11
https://www.youtube.com/watch?v=Y8Ogd5voIYs
Nov 12, 2011 - Uploaded by smiatacz
This darn little engine just keeps going. ... I have a 2003 chevy blazer and the oil cooler line from the oil filter to ... I have a 95 Chevy s10 v6 vortec 2wd that is slightly dripping oil out of agasket ... I'm having same problem 2001 Chevy Blazer 4x4 (not xtreme) not sure if those same bolts are missing on mine.

metal box mounted in front of coil.

I take it the dist was removed, if not then your problem is probably not ignition timing

It's not worth doing all that conversion, buy the time you spend the time and money to convert the 89 4.3 to work on the 98 blazer, it would be cheaper to install a 98 vortec rebuild. The 89 4.3 have a TBI fuel injection system and the ecm on the 98 will not work and the bad news is that the ecm on the 98 also controls the transmission shift points and the 89 will not, so even if you swap the ecm to have the 89 4.3 engine work. the transmission will not shift. Sorry for the bad news but it would be cheaper to replace the 98 engine with the years of 1996 to 2001. Good luck and hope this helps. 

The firing order for a Chevy s10 depends on which engine you have. 1.9L engine the firing order is: 1-3-4-2 . Distributor rotates counterclockwise. 2.0L engine the firing order is: 1-3-4-2 . Distributor rotates clockwise. 2.5L engine the firing order is: 1-3-4-2 . Distributor rotates clockwise. 2.8L engine the firing order is: 1-2-3-4-5-6 . Distributor rotates clockwise. 4.3L engine the firing order is: 1-6-5-4-3-2 . Distributor rotates clockwise.

try this link,

http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c152800bfba5

Hope this helps

check for loose or cracked vacuum lines, and/or the rotor. It may not be making consistant contact.