LS7 Crank in LQ4 Block
Thread Starter
Launching!
iTrader: (9)
Joined: Oct 2005
Posts: 232
Likes: 0
From: Wichita Falls Texas
LS7 Crank in LQ4 Block Anyone here know if a ls7 crank will work in a lq4 block?? Would the ls7 crank being a dry sump crank work in a wet sump block?? Also the reluctor wheel of the ls7 is 54 I believe, and not sure what it is in the lq4. If they are different, can you change the reluctor wheels?? This will be going in a 06 Silverado. Thanks for any help.
The LS7 does have a 58x Reluctor wheel and the LQ4 has a 24x reluctor...They can be changed by a machine shop or you can use a convertor box. But the 06 Silverdao's computer should be for a 58x reluctor. The LS7 has a longer crank snout than other LS series engines to accomodate it's complex oil pump. The LQ4 crank probably has a wider rear flange due to the transmissions used. But the LS7 crank will not and you could use a spacer if need be. Also the LS7 can be converted to a wet sump system so yes to that one. Oh and of course the LS7 has a bigger stroke....
Last edited by Petraszewsky; Jul 9, 2009 at 04:29 PM.
To use an LS7 crank in a wet sump application you need to machine the crank snout to the shorter dimension of the wet sump style engines.
Also, the crank would require re-balancing.
Cole
Also, the crank would require re-balancing.
Cole
The LS7 does have a 58x Reluctor wheel and the LQ4 has a 24x reluctor...They can be changed by a machine shop or you can use a convertor box. But the 06 Silverdao's computer should be for a 58x reluctor. The LS7 has a longer crank snout than other LS series engines to accomodate it's complex oil pump. The LQ4 crank probably has a wider rear flange due to the transmissions used. But the LS7 crank will not and you could use a spacer if need be. Also the LS7 can be converted to a wet sump system so yes to that one.
Thread Starter
Launching!
iTrader: (9)
Joined: Oct 2005
Posts: 232
Likes: 0
From: Wichita Falls Texas
The LS7 does have a 58x Reluctor wheel and the LQ4 has a 24x reluctor...They can be changed by a machine shop or you can use a convertor box. But the 06 Silverdao's computer should be for a 58x reluctor. The LS7 has a longer crank snout than other LS series engines to accomodate it's complex oil pump. The LQ4 crank probably has a wider rear flange due to the transmissions used. But the LS7 crank will not and you could use a spacer if need be. Also the LS7 can be converted to a wet sump system so yes to that one. Oh and of course the LS7 has a bigger stroke....
in my opinion to much would need to be changed/modified for it to work, 408 stroker kits are relatively cheap now, i would say go that route and save your self hastle and headache
Trending Topics
Depends on how much he got the crank for. It's a factory FORGED piece. So if it was cheap enough, I would say it's a worthwhile swap.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
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
