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This head is for large bore power w/ a 63cc combustion chamber Shop now at the guaranteed lowest price! Dyno results produce 700 hp plus on pump gas
Requires 4″ bore minimum and ls3 intake rocker. Bore w/63 cc combustion chambers 3161a parts at jegs Shop the best available promaxx xxtreme gm ls aluminum cylinder heads parts at the guaranteed lowest prices
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Promaxx 3165 xxtreme 260 ls3 rectangle large bore 59cc bare heads fits vehicle This head is for large bore power Flowing promaxx ls3 large bore, small bore, and 245cc cathedral port heads.edit When i said small bore i meant 3.898bore which is 5.7
It is not for the 5.3. At promaxx, we provide our xxtreme series at prices that make our competition cringe Going fast doesn't have to break the bank, so get a pair of xxtreme series heads today. Promaxx cylinder headsthe promaxx xxtreme ls 240 small bore head will take your ls1, ls2, or ls3 to levels that fully cnc ported oem heads can’t achieve
Back to back dyno tests show well known fully cnc ported heads fall 70hp short of this 240cc as cast monster
On identical engines, there is no comparison Our small rectangle is a beast 5.7 ls1 with moderate cams made over 605hp on. In addition to the ls head, promaxx decided to dive into a world where an affordable aluminum cylinder head isn't exactly commonplace — the diesel market.
Get the best performance with promaxx performance xxtreme assembled 260 cc rectangle port cylinder heads for ls3 w/4 in Bore w/63 cc combustion chambers 3163 parts at jegs. Promaxx performance products specializes in all types of automotive cylinder head for any budget, carrying performance cylinder heads, diesel cylinder heads and stock replacement cylinder heads Promaxx performance has designed a complete new line of performance heads that meet or exceed the big names in the industry.
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