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Product Description
Used pair of used cylinder heads.
These are THE cylinders to use on a 40hp engine - they feature the later style square bosses and strengthening around the rockers that were proving unreliable on pulling out on the earlier 40hp round boss heads.
Used and could do with seats refacing - they came from a running engine a couple of years back.
No obvious damage, all the fins, studs and faces are intact and damage free.
Correct 40hp setup for reliability.
Known as the Mexican 373 square boss 40hp heads.
Proper Old Speed components if you're building something accurate.
These are THE cylinders to use on a 40hp engine - they feature the later style square bosses and strengthening around the rockers that were proving unreliable on pulling out on the earlier 40hp round boss heads.
Used and could do with seats refacing - they came from a running engine a couple of years back.
No obvious damage, all the fins, studs and faces are intact and damage free.
Correct 40hp setup for reliability.
Known as the Mexican 373 square boss 40hp heads.
Proper Old Speed components if you're building something accurate.
