LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Cylinder Head Selection

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Old Apr 9, 2017 | 07:24 AM
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Default Cylinder Head Selection

I'm looking to go to an aftermarket head and was just wondering what everyone's experience and opinions were between two choices.

Basically I'm looking at the competition ported 210 LT4 AFR Eliminators (with custom grind from LE or AI) vs AI's 21° Trickflow h/c package. Basically just wondering if anyone had some first hand experience with either combo, and like to know what their results are.

Just for discussion's sake current plans are staying HR, but could change to SR later down the road and this will be on a 383 min cube motor.

Thanks

Last edited by myltwon; Apr 9, 2017 at 07:51 AM.
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Old Apr 9, 2017 | 11:35 AM
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You can also talk with Craig Gallant from Gallant Technical Performance for another option in your choosing.
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Old Apr 9, 2017 | 01:45 PM
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Does he spec cams as well or just cylinder head porting?
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Old Apr 9, 2017 | 04:33 PM
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Dunno if he does custom cams.
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Old Apr 9, 2017 | 06:09 PM
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Originally Posted by SS RRR
You can also talk with Craig Gallant from Gallant Technical Performance for another option in your choosing.
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Old Apr 9, 2017 | 07:29 PM
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Does he have an email or screen name somewhere? Seems like phone is his only contact method.
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Old Apr 10, 2017 | 11:10 AM
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http://www.gtp-racing.com/
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Old Apr 10, 2017 | 03:48 PM
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Yeah I went to his site all he has listed is a phone number.

I'm sure he does great work but his prices just for the work alone are inline with ported afrs or AI cnc ported trick flows.
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Old Apr 10, 2017 | 09:55 PM
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Originally Posted by myltwon
Yeah I went to his site all he has listed is a phone number.

I'm sure he does great work but his prices just for the work alone are inline with ported afrs or AI cnc ported trick flows.
$2k for the street/strip port is a bit steep, but keep in mind you are paying for one of the best head porters on the planet to work his magic with lots of work done by hand and a finishing polish. It's not your every day "Stage 2" port job or one just dropped in a CNC then thrown in a box.

His race port on the ancient AFR 220s I have flowed over 330cfm from .6 and held it to past .7 like a table top with barely any fall off. A lot of poorly done heads can hit a nice peak flow, but drop like a rock afterwards and have no velocity so wont actually run a number.

Either way, when you're looking at aftermarket heads on a stroker your whole build is going to be expensive and you gotta pay to play...and honestly if you want to stay HR I wouldn't go that crazy. Some out of the box Comp AFRs will be fine...heck even LE3s or AI220s would be enough for most primarily street HR builds.
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Old Apr 11, 2017 | 06:36 AM
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Originally Posted by Puck
$2k for the street/strip port is a bit steep, but keep in mind you are paying for one of the best head porters on the planet to work his magic with lots of work done by hand and a finishing polish. It's not your every day "Stage 2" port job or one just dropped in a CNC then thrown in a box.

His race port on the ancient AFR 220s I have flowed over 330cfm from .6 and held it to past .7 like a table top with barely any fall off. A lot of poorly done heads can hit a nice peak flow, but drop like a rock afterwards and have no velocity so wont actually run a number.

Either way, when you're looking at aftermarket heads on a stroker your whole build is going to be expensive and you gotta pay to play...and honestly if you want to stay HR I wouldn't go that crazy. Some out of the box Comp AFRs will be fine...heck even LE3s or AI220s would be enough for most primarily street HR builds.
I gotcha on the HR limiting me, just wanting something with room for growth since sr isn't completely out of the question now or in the future for me. Definitely don't want to "overhead" the car and have a dog below 4K, but I've seen nice results with the 21° trick flows with HR cams but still have a good ceiling with solid roller.

I was wondering mostly if anyone has run the competition port 210s out of the box and if so what the results were mph wise.
​​
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Old Apr 11, 2017 | 09:49 AM
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Originally Posted by Puck
$2k for the street/strip port is a bit steep, but keep in mind you are paying for one of the best head porters on the planet to work his magic with lots of work done by hand and a finishing polish.
Exactly. He was one of the first to port on LT1 heads as well as getting some of the first f-bodys deep into the 11's N/A back in mid-90's. He'd be the first one I'd go to above anyone else.
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Old Apr 13, 2017 | 11:56 AM
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If you do get a new set, I'd be interested in buying your stockers. Want to try my hand at modding a pair. Thanks!
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Old Apr 13, 2017 | 08:23 PM
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Originally Posted by myltwon
I gotcha on the HR limiting me, just wanting something with room for growth since sr isn't completely out of the question now or in the future for me. Definitely don't want to "overhead" the car and have a dog below 4K, but I've seen nice results with the 21° trick flows with HR cams but still have a good ceiling with solid roller.

I was wondering mostly if anyone has run the competition port 210s out of the box and if so what the results were mph wise.
​​
Excuse the long post, hopefully I can help ya before you go too far overboard or get pushed into making a bad decision by forum advice.

I feel ya, if I was planning a modest HR build I wouldn't be in a rush to spend 2k+ on porting on top of the cost of the heads either. It really depends on what you want from the car - not what you THINK you want - stop and really be honest with yourself what you really envision your finished build to be. Then, tell that to a pro that does it for a living (whether that be LE, AI, GTP, Portpros, etc) and trust them to do their job.

I told myself I would be happy with an aggressive street/strip warrior as a DD, picturing myself hopping well dressed out of a badass hard loping muscle car at a nice restaurant and dropping panties at every stop light "Fast and Furious" Dom style. Reality wasn't what I thought it would be and it eventually ended up causing me to demote it to track duty/weekend car and kept me from enjoying my car for YEARS. In that time I've been through three different DD's, done multiple car and motorcycle builds, and could have finished my Z two times over by now but keep losing interest before half-assedly working on it for a week or so.

If I would have been honest with myself and realized what I REALLY wanted, I would have kept my motor exactly how it was when it ran 11s, threw a nitrous kit on it, and just worked on comfort and appearance mods. I would now have a badass 10sec capable daily that I could live with, that would look awesome and have nice paint/interior instead of the overbuilt junkyard shell with damn near $15-20k worth of parts scattered between storage lots and garages. Once its finished I STILL probably won't drive more then 20mins away with its gutted interior, no AC, no overdrive, and terrible quality radio that I can barely hear over the loud *** exhaust. Do I still love it? Of course...but cruising around in a racecar on the street is cool as hell in your mind but gets old quick in real life.
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Old Apr 14, 2017 | 06:40 PM
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Originally Posted by Puck
Excuse the long post, hopefully I can help ya before you go too far overboard or get pushed into making a bad decision by forum advice.

I feel ya, if I was planning a modest HR build I wouldn't be in a rush to spend 2k+ on porting on top of the cost of the heads either. It really depends on what you want from the car - not what you THINK you want - stop and really be honest with yourself what you really envision your finished build to be. Then, tell that to a pro that does it for a living (whether that be LE, AI, GTP, Portpros, etc) and trust them to do their job.

I told myself I would be happy with an aggressive street/strip warrior as a DD, picturing myself hopping well dressed out of a badass hard loping muscle car at a nice restaurant and dropping panties at every stop light "Fast and Furious" Dom style. Reality wasn't what I thought it would be and it eventually ended up causing me to demote it to track duty/weekend car and kept me from enjoying my car for YEARS. In that time I've been through three different DD's, done multiple car and motorcycle builds, and could have finished my Z two times over by now but keep losing interest before half-assedly working on it for a week or so.

If I would have been honest with myself and realized what I REALLY wanted, I would have kept my motor exactly how it was when it ran 11s, threw a nitrous kit on it, and just worked on comfort and appearance mods. I would now have a badass 10sec capable daily that I could live with, that would look awesome and have nice paint/interior instead of the overbuilt junkyard shell with damn near $15-20k worth of parts scattered between storage lots and garages. Once its finished I STILL probably won't drive more then 20mins away with its gutted interior, no AC, no overdrive, and terrible quality radio that I can barely hear over the loud *** exhaust. Do I still love it? Of course...but cruising around in a racecar on the street is cool as hell in your mind but gets old quick in real life.

oh don't get me wrong I'm totally used to the quasi-race car thing, I have no intentions of yanking the interior or AC out just looking for a more capable heads cam setup ontop of a forged higher compression motor. I already have a dd and have had this car almost 14 years now. I've had many different setups on the car but never looked into aftermarket castings since my plans were originally going with a procharger and just running my ported stock castings.

the more I started getting serious about moving forward on it the more I started rethinking it. Having to more than likely convert it to SD, figure out how to run higher than a 1 bar map likely using an aftermarket ecu, upgrade the procharger kit, probably have to move away from a 4L60e, run twin intank or larger single fuel pump, and so on. This meant I would probably be out $10K before I even have a short block squared away and having to get rid of alot of current parts that are recently purchased.

my power goals, ET/mph, and expectations aren't high. Basically if I could get a high 10 sec car with a mid-low 120s trap I'll be happy.

​​​​​
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Old Apr 17, 2017 | 06:43 AM
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the 210 comp head as is will get you there dont be afraid of a solid roller either-they arent as much maintenance as you hear. If you can get some shaft rockers youll probably never have to touch them. Lots of ways to slice a cat

Puck gave some good tips
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Old Apr 17, 2017 | 08:04 AM
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Puck, you are on point with that post.
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Old Apr 17, 2017 | 09:33 AM
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Originally Posted by cuisinartvette
the 210 comp head as is will get you there dont be afraid of a solid roller either-they arent as much maintenance as you hear. If you can get some shaft rockers youll probably never have to touch them. Lots of ways to slice a cat

Puck gave some good tips
gotcha, not really afraid of a solid roller just more interested in not dropping $3K on new rockers and aftermarket pcm as of right now. Curious to see what can be accomplished on a stock pcm and a hydraulic roller.
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Old Apr 17, 2017 | 09:58 AM
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Originally Posted by Puck
Do I still love it? Of course...but cruising around in a racecar on the street is cool as hell in your mind but gets old quick in real life.
Which is exactly why I've always stayed on the conservative side. I'd rather cruise/drive/take road trips than start the car maybe one a month, drive down to the local spot and sit in a lawn chair in a parking lot while reminiscing about "back in my day..." stories that I have witnessed over and over again.
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Old Apr 17, 2017 | 11:29 AM
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Originally Posted by cuisinartvette
the 210 comp head as is will get you there dont be afraid of a solid roller either-they arent as much maintenance as you hear.
If you can get some shaft rockers youll probably never have to touch them.
Lots of ways to slice a cat.........
That's what I did.

KW
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