Wrong cylinder heads? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

000montoya · 08-20-2015, 07:33 PM

I'm no expert but these are the wrong cylinder heads right ? I picked them up today from TSP and I'm really disappointed because it was a 6 hour drive.

000montoya · 08-20-2015, 07:34 PM

One of the holes is blocked off.. Could I take it to a machine shop? Or is it best to get different ones

Trob85 · 08-20-2015, 07:54 PM

The ls3/99 have the rear vents blocked off only crossover tube used are the two front which is what that looks like. You could have the rivet drilled out and add another tube to evacuate the rear of the engine but honestly I wouldn't worry about it.

Bo White · 08-20-2015, 08:20 PM

One end is blocked off on each cylinder head. Just keep up with were they are when you install the heads.

000montoya · 08-20-2015, 08:29 PM

I get that one is blocked off in each cylinder head but when the heads are placed on the block I can't install the front cross over tube because the other side is blocked ?? And the one in the rear is going to stay open . That's what I'm stuck on. Did they give me two of the same side ?

Trob85 · 08-20-2015, 08:35 PM

If that's the case then yes you'll have to buy a rivet put it in the rear and have one drilled out and the heads cleaned (or try to be super careful). But the heads are the same they just put the rivet in the wrong spot.

motorhead · 08-20-2015, 09:04 PM

Yeah, they must have given you heads that were set up for the same side as far as the cross over is concerned. Get a plug and remove the other. Problem solved.

Of course you know if you use two driver side heads that your car will only drive in left handed circles. Lol

000montoya · 08-20-2015, 09:18 PM

Hahahah my bad about that. I wasn't 100% sure if the heads had a certain side. This made me think it did . and it's my first time tearing into a engine . Thanks for the help tho guys I'll be taking it to a local machine shop tomorrow

CGT · 08-21-2015, 10:39 AM

GM Part Number 12602540 is a block-off plate that can be used in these scenarios.

000montoya · 08-21-2015, 12:09 PM

I contacted Tsp and the blocked one just pops out with a screw driver and I bought that part from my local Chevy dealer but he told me it shows no dealer has the bolt in stock..

000montoya · 08-21-2015, 12:17 PM

would a similar bolt that's pretty close to the same work?? Or do I need a exact one

Punisher_ATX · 08-21-2015, 01:26 PM

the bolt from any LS motor will work if anyone or any local shop has 5.3's laying around.

08-20-2015, 07:33 PM	#1
000montoya Drives: 2014 RedRock 1LE Join Date: Jul 2012 Location: Conroe, TX Posts: 245	Wrong cylinder heads? I'm no expert but these are the wrong cylinder heads right ? I picked them up today from TSP and I'm really disappointed because it was a 6 hour drive. Attached Images __________________ 498RWHP 439RWTQ Instagram: jm_103

08-20-2015, 07:34 PM	#2
000montoya Drives: 2014 RedRock 1LE Join Date: Jul 2012 Location: Conroe, TX Posts: 245	One of the holes is blocked off.. Could I take it to a machine shop? Or is it best to get different ones __________________ 498RWHP 439RWTQ Instagram: jm_103

08-20-2015, 07:54 PM	#3
Trob85 Svt lol Drives: 2011 ss inferno orange blown Join Date: Jan 2012 Location: Topeka Posts: 2,312	The ls3/99 have the rear vents blocked off only crossover tube used are the two front which is what that looks like. You could have the rivet drilled out and add another tube to evacuate the rear of the engine but honestly I wouldn't worry about it. __________________ plasti dip is not a mod.......and a cold air intake doesn't make you fast!

08-20-2015, 08:29 PM	#5
000montoya Drives: 2014 RedRock 1LE Join Date: Jul 2012 Location: Conroe, TX Posts: 245	I get that one is blocked off in each cylinder head but when the heads are placed on the block I can't install the front cross over tube because the other side is blocked ?? And the one in the rear is going to stay open . That's what I'm stuck on. Did they give me two of the same side ? __________________ 498RWHP 439RWTQ Instagram: jm_103

08-20-2015, 08:35 PM	#6
Trob85 Svt lol Drives: 2011 ss inferno orange blown Join Date: Jan 2012 Location: Topeka Posts: 2,312	If that's the case then yes you'll have to buy a rivet put it in the rear and have one drilled out and the heads cleaned (or try to be super careful). But the heads are the same they just put the rivet in the wrong spot. __________________ plasti dip is not a mod.......and a cold air intake doesn't make you fast!

08-20-2015, 08:20 PM	#4
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,019	One end is blocked off on each cylinder head. Just keep up with were they are when you install the heads.

08-20-2015, 09:04 PM	#7
motorhead Drives: Love the one you're with Join Date: Sep 2009 Location: Downtown Charlie Brown Posts: 11,850	Yeah, they must have given you heads that were set up for the same side as far as the cross over is concerned. Get a plug and remove the other. Problem solved. Of course you know if you use two driver side heads that your car will only drive in left handed circles. Lol

08-20-2015, 09:18 PM	#8
000montoya Drives: 2014 RedRock 1LE Join Date: Jul 2012 Location: Conroe, TX Posts: 245	Hahahah my bad about that. I wasn't 100% sure if the heads had a certain side. This made me think it did . and it's my first time tearing into a engine . Thanks for the help tho guys I'll be taking it to a local machine shop tomorrow __________________ 498RWHP 439RWTQ Instagram: jm_103

08-21-2015, 10:39 AM	#9
CGT Drives: 2011 SSm6 Join Date: Oct 2011 Location: St.Louis Posts: 355	GM Part Number 12602540 is a block-off plate that can be used in these scenarios.

08-21-2015, 12:09 PM	#10
000montoya Drives: 2014 RedRock 1LE Join Date: Jul 2012 Location: Conroe, TX Posts: 245	I contacted Tsp and the blocked one just pops out with a screw driver and I bought that part from my local Chevy dealer but he told me it shows no dealer has the bolt in stock.. __________________ 498RWHP 439RWTQ Instagram: jm_103

08-21-2015, 12:17 PM	#11
000montoya Drives: 2014 RedRock 1LE Join Date: Jul 2012 Location: Conroe, TX Posts: 245	would a similar bolt that's pretty close to the same work?? Or do I need a exact one __________________ 498RWHP 439RWTQ Instagram: jm_103

08-21-2015, 01:26 PM	#12
Punisher_ATX Drives: 2010 SS Join Date: Jun 2015 Location: Austin Posts: 439	the bolt from any LS motor will work if anyone or any local shop has 5.3's laying around.