C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
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243 Head swap/ Alternator Clearance

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Old Jan 31, 2025 | 01:25 PM
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https://www.importapart.com/product/...e-covers-2672/
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Old Jan 31, 2025 | 01:33 PM
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Also notice the gasket is missing. Was it installed on your engine with no gasket?
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Old Jan 31, 2025 | 06:16 PM
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LS4 is the front wheel drive 5.3 that does add up that things would change.
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Old Jan 31, 2025 | 06:55 PM
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Originally Posted by drummer0901
Looks like a Malibu, LS4 5.3 from a quick ebay search.
Looks like a Malibu, LS4 5.3 from a quick ebay search.
Begs the question if he weighed the valves also.. These could be solid valve 243s since some of the 5.3Ls got 243s and some got 799s. Nothing wrong with that but I preferred the light weights in my build.
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Old Jan 31, 2025 | 07:48 PM
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Originally Posted by GoldenFlame
Begs the question if he weighed the valves also.. These could be solid valve 243s since some of the 5.3Ls got 243s and some got 799s. Nothing wrong with that but I preferred the light weights in my build.
OP said he sent the heads to TSP to get ported, and I believe they replace the valves as part of the porting package anyways.
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Old Feb 1, 2025 | 12:03 AM
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Originally Posted by drummer0901
Not sure, I think a Malibu SS, not sure what year. I tried to use the original LS1, but the baffles on the passenger side would not fit with the BTR trunion upgrade. I later knocked them out before discovering the LS6 valley mod with my catch can. So rather than replacting the original PCV system and a valve cover (with baffles) I did the LS6 valley mod. I think it will look cleaner too
you are correct on , when i did BTR trunion upgrade the pass side valve cover wouldn't fit, because of that pcv piece on the inside , what i did just cut with my drahmel tool a big chunk out of it and it worked
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