GT500 Forged Shortblocks - 1 Year warranty included - 5.4 / 5.8 & Alloy / Iron Option

manny231988

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What’s the weight difference between an 5.8 aluminum and a 5.4 iron and will the 5.4 bolt up to the 5.8 heads and stuff are all parts interchangeable ?
 

Catmonkey

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What’s the weight difference between an 5.8 aluminum and a 5.4 iron and will the 5.4 bolt up to the 5.8 heads and stuff are all parts interchangeable?
About 100 lbs. This is what I did, but I went from a 5.4 aluminum block. You may need to get the composite windage tray/oil pan gasket to work with this engine and your oil pan. Everything else is interchangable.
 

manny231988

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About 100 lbs. This is what I did, but I went from a 5.4 aluminum block. You may need to get the composite windage tray/oil pan gasket to work with this engine and your oil pan. Everything else is interchangable.
Are you running mmr engine ?
 

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