LS7 Crank in LQ4 Block
07-09-2009, 02:04 PM
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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.
07-09-2009, 02:58 PM
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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; 07-09-2009 at 04:29 PM.
07-09-2009, 04:19 PM
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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.
07-09-2009, 07:16 PM
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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....
07-12-2009, 04:02 PM
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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
