Lt1 Valvetrain build and feedback
Thread Starter
Registered User
Joined: Mar 2017
Posts: 7
Likes: 0
Lt1 Valvetrain build and feedback Ok this is my first post ,and I wanted some feed back on some of the parts I'm about to order. So im ordering
comp cam Xtreem fuel injection cam and lifter kit,
rocker arm kit 1.6 magnum rockers and push rods,
comp cam high energy timing set ,
msd ignition kit lt1 from ebay
Richmond gear gm 4.10
trickflow tfx efi throttle body 58mm
long tube headers
acdelco water pump
comp cam Xtreem fuel injection cam and lifter kit,
rocker arm kit 1.6 magnum rockers and push rods,
comp cam high energy timing set ,
msd ignition kit lt1 from ebay
Richmond gear gm 4.10
trickflow tfx efi throttle body 58mm
long tube headers
acdelco water pump
slp performance foil
If any one has used any of these can you give me some feedback , and with all this would I need to get bigger injectors ? How much hp do you think I will gain from this ? Wouldn't buy a 58mm TB
Don't know much about the timing sets, but should be fine as long as it's LT1 specific
Would stay away from an ignition box. The '96-'97 ignition systems were much stronger than previous years. For N/A the stock ignition is just fine.
Unless your w/p is leaking I wouldn't replace it.
It has been stated Richmond gears have a tendency to make more noise than Motive gears. Supposedly there is less margin for error to get a Richmond gear set up than Motives.
Don't know much about the timing sets, but should be fine as long as it's LT1 specific
Would stay away from an ignition box. The '96-'97 ignition systems were much stronger than previous years. For N/A the stock ignition is just fine.
Unless your w/p is leaking I wouldn't replace it.
It has been stated Richmond gears have a tendency to make more noise than Motive gears. Supposedly there is less margin for error to get a Richmond gear set up than Motives.
TECH Veteran
Joined: Apr 2008
Posts: 4,985
Likes: 112
you don't need the MSD ignition box
The 58 MM TB will cost more than any performance gains are worth (if any) with your build.
what rocker arm part #?
Thread Starter
Registered User
Joined: Mar 2017
Posts: 7
Likes: 0
Wouldn't buy a 58mm TB
Don't know much about the timing sets, but should be fine as long as it's LT1 specific
Would stay away from an ignition box. The '96-'97 ignition systems were much stronger than previous years. For N/A the stock ignition is just fine.
Unless your w/p is leaking I wouldn't replace it.
It has been stated Richmond gears have a tendency to make more noise than Motive gears. Supposedly there is less margin for error to get a Richmond gear set up than Motives.
Don't know much about the timing sets, but should be fine as long as it's LT1 specific
Would stay away from an ignition box. The '96-'97 ignition systems were much stronger than previous years. For N/A the stock ignition is just fine.
Unless your w/p is leaking I wouldn't replace it.
It has been stated Richmond gears have a tendency to make more noise than Motive gears. Supposedly there is less margin for error to get a Richmond gear set up than Motives.
Thread Starter
Registered User
Joined: Mar 2017
Posts: 7
Likes: 0
And here is the rocker arms http://www.compperformancegroupstores.com/store/merchant.mvc?Store_Code=CC&Screen=PROD&Product_Cod e=RPM1418-16
What about 52mm throttle ?
And this is only the first part of my build for this year , either near the end of this year or sometime next year I will be getting the bottom end done and adding a turbo
Trending Topics
Because it's simply not needed with your stock ignition for N/A. The output on the coil is far stronger than on OBDI cars. You would be wasting your money in buying it, not to mention MSD's have been known to go bad, and I take it the box you are contemplating buying is used? If so, who is to say it's any good? Your hesitation can be from many different things. Opti failures are mostly mechanical or sensor related. Something an ignition box cannot fix.
For TB, I'd stay with the stock one.
For TB, I'd stay with the stock one.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Thread Starter
Registered User
Joined: Mar 2017
Posts: 7
Likes: 0
Because it's simply not needed with your stock ignition for N/A. The output on the coil is far stronger than on OBDI cars. You would be wasting your money in buying it, not to mention MSD's have been known to go bad, and I take it the box you are contemplating buying is used? If so, who is to say it's any good? Your hesitation can be from many different things. Opti failures are mostly mechanical or sensor related. Something an ignition box cannot fix.
For TB, I'd stay with the stock one.
For TB, I'd stay with the stock one.
I'm going to mirror what has already been said about not wasting your money on an MSD box and a larger throttle body. Don't expect to get anything out of those two items at your modification level except a deeper hole in your wallet.
You have some kind of issue going on with your car and an msd box ain't gonna fix it. The opti isn't nearly as bad as some people make it out to be. I've owned LT1s since 2004 and never had an opti related issue. In fact the only ignition related issue I ever experienced was the ICM going bad.
More details about valvetrain should be provided such as what cam, what rockers, etc etc because you didn't define that in your post.
You have some kind of issue going on with your car and an msd box ain't gonna fix it. The opti isn't nearly as bad as some people make it out to be. I've owned LT1s since 2004 and never had an opti related issue. In fact the only ignition related issue I ever experienced was the ICM going bad.
More details about valvetrain should be provided such as what cam, what rockers, etc etc because you didn't define that in your post.
Thread Starter
Registered User
Joined: Mar 2017
Posts: 7
Likes: 0
OK no msd but here are the rocker arms . http://www.compperformancegroupstores.com/store/merchant.mvc?Store_Code=CC&Screen=PROD&Product_Cod e=RPM1418-16
And here is the cam
COMP Cams Xtreme Fuel Injection Cam and Lifter Kits K07-468-8
https://m.summitracing.com/parts/cca-k07-468-8?seid=srese1&cm_mmc=pla-google-_-shopping-_-srese1-_-comp-cams&gclid=CjwKEAjwh9PGBRCfso2n3ODgvUcSJAAhpW5oh1S wpbjWpA3uBDK9MuMzNq_JI2D1gUjxJ88M12zb4BoCP_Pw_wcB
And here is the cam
COMP Cams Xtreme Fuel Injection Cam and Lifter Kits K07-468-8
https://m.summitracing.com/parts/cca-k07-468-8?seid=srese1&cm_mmc=pla-google-_-shopping-_-srese1-_-comp-cams&gclid=CjwKEAjwh9PGBRCfso2n3ODgvUcSJAAhpW5oh1S wpbjWpA3uBDK9MuMzNq_JI2D1gUjxJ88M12zb4BoCP_Pw_wcB
OK no msd but here are the rocker arms . http://www.compperformancegroupstore...ode=RPM1418-16
And here is the cam
COMP Cams Xtreme Fuel Injection Cam and Lifter Kits K07-468-8
https://m.summitracing.com/parts/cca...zb4BoCP_Pw_wcB
And here is the cam
COMP Cams Xtreme Fuel Injection Cam and Lifter Kits K07-468-8
https://m.summitracing.com/parts/cca...zb4BoCP_Pw_wcB
Start by reading this:
https://ls1tech.com/forums/lt1-lt4-m...ion-guide.html
It's an oldie but a goodie.
Yep. Not needed. At the very least if you want to replace your opti then there has been good things (some bad) about the MSD ignition. If you want to replace your coil, a stock one is fine. I am running a MSD coil on mine and it's fine. Others have said the MSD coil could output less than stock. I haven't had any issues. As far as the MSD opti is concerned, it is about all that's offered anymore that isn't a gigantic pile of crap.
TECH Regular
Joined: Nov 2011
Posts: 471
Likes: 14
From: Tucker, GA
Loads of people making sky-high power on the stock throttle body, too. I don't think the stocker becomes a restriction until you're over like 500-600 horsepower (or more). But hey - they look cool.
TECH Veteran
Joined: Apr 2008
Posts: 4,985
Likes: 112
Temo
that cam is stupid big for what you are doing now
you say you are doing a "bottom end build later and turbo"...
the turbo will be the tail wagging the dog on what cam selection and compression ratio you NEED to go with.
Step back and think more about what the final engine you want as piecing the build together, especially with the cam & springs you selected, is a plan that will end in a big bang
Someone like Lloyd Elliott or Advanced Induction would be a good place to get heads & cam from based on what kind of motor you want to build. A NA or power adder motor (turbo). Two different build requirements
that cam is stupid big for what you are doing now
you say you are doing a "bottom end build later and turbo"...
the turbo will be the tail wagging the dog on what cam selection and compression ratio you NEED to go with.
Step back and think more about what the final engine you want as piecing the build together, especially with the cam & springs you selected, is a plan that will end in a big bang
Someone like Lloyd Elliott or Advanced Induction would be a good place to get heads & cam from based on what kind of motor you want to build. A NA or power adder motor (turbo). Two different build requirements