Patriot 2151 Vorted Heads Installed
#1
Supreme Member
Thread Starter
Patriot 2151 Vorted Heads Installed
I have a 355 in my 1984 TA it was running the stock 882 heads with stock style pistons 5cc valve reliefs. Driving down the road I broke a rocker stud and bent a pushrod. After taking off the intake and other items to replace the rod and check the lifter I decided to just replace the heads with something a bit more fun. I picked up a set of patriot iron vortec heads.
http://www.jegs.com/i/Patriot+Perfor...151K1/10002/-1
I still have some picture to upload but here is what I have so far.
The install is finished but I need to readjust the rockers using the EOIC method. Instead I used the incorrect method of EOIO and I need to fix that. I also need to fix the timing. I was getting some backfiring though the carb under load in 4th and 5th and I retarded the timing to compensate.
I later learned vortecs will backfire without enough timing and I need to advance it. I will get these items taken care of later after it stops raining here.
The heads fit properly and the valve sealed well when I sprayed WD40 into the intake and exhaust ports to see if any leaked out. Difficulty I ran across were all related to the intake manifold from edelbrock. I am running a edelbrock vortec manifold and I had to oblong the mounting holes. I was warned about this by patriot when I asked them for install tips.
Start up went fairly smooth after I got the plug wires in the right place.
The manifold being painted
The heads
Cylinder wall
A lifter showing little wear. I took them all out and inspected them for wear
Broken stud old heads
New heads installed more pictures to come soon
http://www.jegs.com/i/Patriot+Perfor...151K1/10002/-1
I still have some picture to upload but here is what I have so far.
The install is finished but I need to readjust the rockers using the EOIC method. Instead I used the incorrect method of EOIO and I need to fix that. I also need to fix the timing. I was getting some backfiring though the carb under load in 4th and 5th and I retarded the timing to compensate.
I later learned vortecs will backfire without enough timing and I need to advance it. I will get these items taken care of later after it stops raining here.
The heads fit properly and the valve sealed well when I sprayed WD40 into the intake and exhaust ports to see if any leaked out. Difficulty I ran across were all related to the intake manifold from edelbrock. I am running a edelbrock vortec manifold and I had to oblong the mounting holes. I was warned about this by patriot when I asked them for install tips.
Start up went fairly smooth after I got the plug wires in the right place.
The manifold being painted
The heads
Cylinder wall
A lifter showing little wear. I took them all out and inspected them for wear
Broken stud old heads
New heads installed more pictures to come soon
#3
Member
Join Date: Oct 2010
Location: Wilmington, NC
Posts: 322
Likes: 0
Received 0 Likes
on
0 Posts
Car: 3rd gen!
Engine: SBC
Transmission: yes
Axle/Gears: yes
Re: Patriot 2151 Vorted Heads Installed
If your block was decked, that might be why you had to oblong the intake bolt holes.
#4
Supreme Member
Thread Starter
#5
Supreme Member
Thread Starter
Re: Patriot 2151 Vorted Heads Installed
Did the EOIC method lifters are a little less noisy. I think I will probably need to recheck them later.
I also advanced the timing to 10 degrees and it fixed the backfires. After a quick test drive I decided to go to 12 and it really fixed the slugish low RPM feeling the car had. I may play more but it is getting time to put the car away.
Overall the car seems to be running well. A fair bit more power but I think I can do better playing with the timing and the carb. I will probably play more next spring advancing the timing more and maybe try my buds 750 carb.
Here are some more pics
I also advanced the timing to 10 degrees and it fixed the backfires. After a quick test drive I decided to go to 12 and it really fixed the slugish low RPM feeling the car had. I may play more but it is getting time to put the car away.
Overall the car seems to be running well. A fair bit more power but I think I can do better playing with the timing and the carb. I will probably play more next spring advancing the timing more and maybe try my buds 750 carb.
Here are some more pics
#6
Supreme Member
Thread Starter
Re: Patriot 2151 Vorted Heads Installed
Played with the carb a bit more this weekend.
No more stuttering, backfires and no pinging. These heads are great. I know with some more tuning I can get some more power out of them but there already awesome. So much low end power even with a very small about of throttle and they really take off when you hit the gas. I am going to store the car soon and work on the cars electrical this winter. I will resume tuning in the spring and try my friends 750cfm carb then.
No more stuttering, backfires and no pinging. These heads are great. I know with some more tuning I can get some more power out of them but there already awesome. So much low end power even with a very small about of throttle and they really take off when you hit the gas. I am going to store the car soon and work on the cars electrical this winter. I will resume tuning in the spring and try my friends 750cfm carb then.
Last edited by midias; 01-06-2012 at 03:04 PM.
#7
Member
Join Date: Mar 2007
Location: MI
Posts: 219
Likes: 0
Received 0 Likes
on
0 Posts
Car: 86 iroc
Engine: 350 vortec HSR
Transmission: 700R4
Axle/Gears: 370
Re: Patriot 2151 Vorted Heads Installed
very nice! just bought a set of these heads for my holley stealth ram. my buddy is going to pick out a cam and assemble it this winter/spring. you should post a video of the car running or driving.
Trending Topics
#8
Supreme Member
Thread Starter
Re: Patriot 2151 Vorted Heads Installed
I will get a video in the spring. For now the car is in storage and it is time to clean up the electrical. I got a new timing light with timing adjustments so I can make sure I am around 34 degrees full advance at 2500 rpm. I am really looking forward to getting the car running right I just hope I can make my trans and rear end hold. That is why I am not getting wider tires.
#9
Senior Member
Join Date: May 2002
Location: loxahatchee fla
Posts: 564
Likes: 0
Received 0 Likes
on
0 Posts
Re: Patriot 2151 Vorted Heads Installed
standard small port intake on vortec heads, in many cases you can get them modified to fit BUT NOT ALWAYS
Last edited by grumpyvette; 01-06-2012 at 04:22 PM.
#10
Supreme Member
Thread Starter
Re: Patriot 2151 Vorted Heads Installed
I used a edelbrock vortec manifold.
#11
Supreme Member
Thread Starter
Re: Patriot 2151 Vorted Heads Installed
Got the timing correct on the car now. It was at 27 degrees at 3000 now I have it at 34 HUGE difference. I am really digging these heads.
Thread
Thread Starter
Forum
Replies
Last Post
evilstuie
Tech / General Engine
22
01-09-2020 08:29 PM
NinjaNife
Tech / General Engine
27
08-23-2015 11:49 AM