Advanced Induction LT1 200cc Heads??
Thread Starter
Melting Slicks
Joined: Apr 2001
Posts: 2,877
Likes: 7
Advanced Induction LT1 200cc Heads??
I am doing some heavy research on my head and shortblock combo and wanted to get some feedback from anyone that has used these heads. Quality, workmanship on the head, etc.
My engine combo is going to be a forged 396 shortblock with a goal of 475 to 500 rwhp. The drivetrain is ZF6 with a 4.10's.
I am looking for a good head that flows up around the 290 to 300 cfm range.
Cam size will be equal or larger than the CC306 which is around 240/244 .510/.540 112 LSA.
Any suggestions on cam selection would also be appreciated. My previous engine modding experience has been in the LS1/6 arena so I don't have a great deal of knowledge on the nuances of cam selection for a 396 LT based engine
It looks like the 200cc LT1 package Advanced Induction has put together is exactly what I am looking for. Billet cam, quality valves and springs, lifters etc.
I'd also like to hear from anyone else using a different head on a 396 in this power range. Price is a consideration but I won't shave dollars to sacrifice quality or power. As I have it priced from Advanced this head with upgraded valvetrain and a fully ported LT1 intake is going to run me in the $3300 range.
Will
My engine combo is going to be a forged 396 shortblock with a goal of 475 to 500 rwhp. The drivetrain is ZF6 with a 4.10's.
I am looking for a good head that flows up around the 290 to 300 cfm range.
Cam size will be equal or larger than the CC306 which is around 240/244 .510/.540 112 LSA.
Any suggestions on cam selection would also be appreciated. My previous engine modding experience has been in the LS1/6 arena so I don't have a great deal of knowledge on the nuances of cam selection for a 396 LT based engine
It looks like the 200cc LT1 package Advanced Induction has put together is exactly what I am looking for. Billet cam, quality valves and springs, lifters etc.
I'd also like to hear from anyone else using a different head on a 396 in this power range. Price is a consideration but I won't shave dollars to sacrifice quality or power. As I have it priced from Advanced this head with upgraded valvetrain and a fully ported LT1 intake is going to run me in the $3300 range.
Will
Thread Starter
Melting Slicks
Joined: Apr 2001
Posts: 2,877
Likes: 7
I am going to try to do it with a hydraulic cam. I know it is on the outer reaches but I think I can get close with a 300+ flowing head, intake, mono throttle body and the right cam.
Cam selection is going to be the most important thing when it comes to matching the rest of the combo.
I may end up trying a couple different grinds before I get what I want.
I do have a bit of time on my side to decided. I am going to start assembling my new motor in mid January after the Holiday madness calms down
Cam selection is going to be the most important thing when it comes to matching the rest of the combo.
I may end up trying a couple different grinds before I get what I want.
I do have a bit of time on my side to decided. I am going to start assembling my new motor in mid January after the Holiday madness calms down
Le Mans Master
Joined: Jul 1999
Posts: 8,683
Likes: 6
From: Phoenix AZ
Originally Posted by Ruby6spd
I am going to try to do it with a hydraulic cam. I know it is on the outer reaches but I think I can get close with a 300+ flowing head, intake, mono throttle body and the right cam.
Cam selection is going to be the most important thing when it comes to matching the rest of the combo.
I may end up trying a couple different grinds before I get what I want.
I do have a bit of time on my side to decided. I am going to start assembling my new motor in mid January after the Holiday madness calms down
Cam selection is going to be the most important thing when it comes to matching the rest of the combo.
I may end up trying a couple different grinds before I get what I want.
I do have a bit of time on my side to decided. I am going to start assembling my new motor in mid January after the Holiday madness calms down
Thread Starter
Melting Slicks
Joined: Apr 2001
Posts: 2,877
Likes: 7
Zix, What are your cam spec's? You are right, this thing will have to be twisted pretty high to get the power but capping it in the 7200 range should be plenty of rpm. If I all a bit short of the hp goal I stated and end up with 466 like yours I will be tickled
My intended use with the car will be drag strip 3 or 4 times a year and something extreme and fun to drive on the weekends. With the 4.10 and manual trans if the power doesn't kick until 3.5k it will be fine with me.
Additional info on the cars current set up:
1 3/4 long tubes
No Cats
Corsa will be replaced with a full stainless 3" system with crossover and large magnaflows
4.10 gears
Cold stablized everthing in the rear (inner and out axles, spindles and u joints)
I am going to keep speed density set up.
My intended use with the car will be drag strip 3 or 4 times a year and something extreme and fun to drive on the weekends. With the 4.10 and manual trans if the power doesn't kick until 3.5k it will be fine with me.
Additional info on the cars current set up:
1 3/4 long tubes
No Cats
Corsa will be replaced with a full stainless 3" system with crossover and large magnaflows
4.10 gears
Cold stablized everthing in the rear (inner and out axles, spindles and u joints)
I am going to keep speed density set up.
Last edited by Ruby6spd; Nov 21, 2006 at 03:17 PM.
Le Mans Master
Joined: Jul 1999
Posts: 8,683
Likes: 6
From: Phoenix AZ
My cam spec are;
242/252 duration @.050
.55x/.56x lift with 1.6 rockers
110 LSA
My last dyno run was stopped at 7000 PRM, but it was still making power, I stopped it because the engine was still pretty fresh and that was about the 20th dyno run in a row (we were tuning at the time).
I don't have a scan of the dyno sheet right now but here's a quick breakdown of the print-out;
RPM HP TQ
3000 306 418
3500 317 418
4000 334 418
4500 359 420
5000 396 416
5500 424 407
6000 448 396
6500 462 384
7000 466 374
My next plans include shaft 1.65 rockers and a better exhaust (1 3/4 headers and Corsa right now...going to stepped headers and 3" exhaust). Then MSD blaster LS coils and digital-8 box (I run an LS coil setup right now as is). I'd like to see another 15-20 RWHP out of it.
242/252 duration @.050
.55x/.56x lift with 1.6 rockers
110 LSA
My last dyno run was stopped at 7000 PRM, but it was still making power, I stopped it because the engine was still pretty fresh and that was about the 20th dyno run in a row (we were tuning at the time).
I don't have a scan of the dyno sheet right now but here's a quick breakdown of the print-out;
RPM HP TQ
3000 306 418
3500 317 418
4000 334 418
4500 359 420
5000 396 416
5500 424 407
6000 448 396
6500 462 384
7000 466 374
My next plans include shaft 1.65 rockers and a better exhaust (1 3/4 headers and Corsa right now...going to stepped headers and 3" exhaust). Then MSD blaster LS coils and digital-8 box (I run an LS coil setup right now as is). I'd like to see another 15-20 RWHP out of it.
Last edited by Zix; Nov 21, 2006 at 05:01 PM.
Le Mans Master
Joined: Jul 2000
Posts: 7,639
Likes: 326
From: Greenville SC
AI is good, but I think you will need a bigger cam and after-market heads. I would get Trick Flow bare heads and get the best/biggest valves and springs you can, and send these to a good porter. You can also get the big AFR heads, or the raised runner LT4 AFR head. Also look at Eportworks and Portpros.
Zix has extemely good heads, you will need the same. Don't just look for big flow #s either, there is a lot more to a good set of heads.
Zix has extemely good heads, you will need the same. Don't just look for big flow #s either, there is a lot more to a good set of heads.
Thread Starter
Melting Slicks
Joined: Apr 2001
Posts: 2,877
Likes: 7
All good points 95 wht, Agree that there is a need for more analysis than just the flow # but total cfm you can move into the cylinder at this level is going to be part of it for sure.
I did look at the trick flows and the raised runner LT4. At this point I don't want to invest huge dollars in a custom intake as it's my understanding the raised runner requires a sheet metal intake to be fabed up.
This is going to be a learning process for sure so all input is greatly appreciated.
edit - Advanced also offers a 210cc Trick flow head that starts with a 199cc intake runner that is opened up to 210cc and flows 315+ on the bench
I did look at the trick flows and the raised runner LT4. At this point I don't want to invest huge dollars in a custom intake as it's my understanding the raised runner requires a sheet metal intake to be fabed up.
This is going to be a learning process for sure so all input is greatly appreciated.
edit - Advanced also offers a 210cc Trick flow head that starts with a 199cc intake runner that is opened up to 210cc and flows 315+ on the bench
Last edited by Ruby6spd; Nov 21, 2006 at 05:10 PM.
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Melting Slicks
Joined: Jul 2004
Posts: 2,695
Likes: 0
From: Chicago Illinois
Originally Posted by Ruby6spd
I am doing some heavy research on my head and shortblock combo and wanted to get some feedback from anyone that has used these heads. Quality, workmanship on the head, etc.
My engine combo is going to be a forged 396 shortblock with a goal of 475 to 500 rwhp. The drivetrain is ZF6 with a 4.10's.
I am looking for a good head that flows up around the 290 to 300 cfm range.
Cam size will be equal or larger than the CC306 which is around 240/244 .510/.540 112 LSA.
Any suggestions on cam selection would also be appreciated. My previous engine modding experience has been in the LS1/6 arena so I don't have a great deal of knowledge on the nuances of cam selection for a 396 LT based engine
It looks like the 200cc LT1 package Advanced Induction has put together is exactly what I am looking for. Billet cam, quality valves and springs, lifters etc.
I'd also like to hear from anyone else using a different head on a 396 in this power range. Price is a consideration but I won't shave dollars to sacrifice quality or power. As I have it priced from Advanced this head with upgraded valvetrain and a fully ported LT1 intake is going to run me in the $3300 range.
Will
My engine combo is going to be a forged 396 shortblock with a goal of 475 to 500 rwhp. The drivetrain is ZF6 with a 4.10's.
I am looking for a good head that flows up around the 290 to 300 cfm range.
Cam size will be equal or larger than the CC306 which is around 240/244 .510/.540 112 LSA.
Any suggestions on cam selection would also be appreciated. My previous engine modding experience has been in the LS1/6 arena so I don't have a great deal of knowledge on the nuances of cam selection for a 396 LT based engine
It looks like the 200cc LT1 package Advanced Induction has put together is exactly what I am looking for. Billet cam, quality valves and springs, lifters etc.
I'd also like to hear from anyone else using a different head on a 396 in this power range. Price is a consideration but I won't shave dollars to sacrifice quality or power. As I have it priced from Advanced this head with upgraded valvetrain and a fully ported LT1 intake is going to run me in the $3300 range.
Will
Le Mans Master
Joined: Jul 2000
Posts: 5,012
Likes: 5
From: OKC OK
You're gonna need a really good set of ported LT4, TFS, or AFR castings if you plan on using a hydraulic roller....LT1 heads won't cut it. There are lots of good (and bad) porters out there so research is very important. Get the LTx intake ported to match, or convert to a single plane, or custom sheetmetal. A custom spec'd cam (hydraulic or solid) is a must, pay attention to all the details, bolts-ons, and get a good dyno tune. Good Luck.
Thread Starter
Melting Slicks
Joined: Apr 2001
Posts: 2,877
Likes: 7
Originally Posted by LT4POWR
Good Luck.
I have a call into the guys at AI to talk about the Trickflow heads they offer. From what I am reading on the various message boards people are very happy with the job they do and the prices seem to be very good for what you are getting.
The grey area for me right now is if I am going to start having a need for expensive parts like shaft mounted rockers etc to get to these power levels.
Le Mans Master
Joined: Jul 2000
Posts: 5,012
Likes: 5
From: OKC OK
Originally Posted by Ruby6spd
The grey area for me right now is if I am going to start having a need for expensive parts like shaft mounted rockers etc to get to these power levels.
