edelbrock victor Jr LS-R heads?
03-09-2009, 10:25 PM
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edelbrock victor Jr LS-R heads? I searched, sorry if this is a repost. New L92 style heads that will fit a 3.9" bore. Anybody heard anything about these - good, bad or other?
The PDF is under LS heads in this list:
http://www.edelbrock.com/automotive_..._catalog.shtml
The PDF is under LS heads in this list:
http://www.edelbrock.com/automotive_..._catalog.shtml
VICTOR JR. LS-R
These cylinder heads offer the best combination of L92 and LS7 technology to deliver a bolt-on cylinder
head for high end street and racing LS1, LS6, LS2, L92 and LS7 applications. Starting with an all new A356
aluminum casting heat treated to T6 spec, these heads feature a 12° valve angle, extra thick deck and extra
material in the spring pockets for a heavy-duty casting that can be used with high-lift cams and heavy valve
springs. A sixth head-bolt boss is included for use on GM Performance Parts LSX blocks. The intake port
configuration is modeled after the factory GM L92 and accepts readily available L76/L92 intake manifolds,
including the Edelbrock Victor Jr. L92 #28457 / #28455. The combustion chambers are 67cc; however there
is plenty of material to machine the deck for smaller chamber volumes. Edelbrock has equipped LS-R heads
with large 2.100" intake / 1.60" exhaust seats and have spaced the valves closer together than factory L92
or LS7 heads – this enables Victor Jr. LS-R heads to bolt onto stock LS1/LS6 3.89" bore sizes! The
valve cover rail is raised to accommodate +0.200 longer than stock valves. Readily available GM LS7 1.8:1
rocker arms are recommended.
Bare (single) Complete (single)
Victor Jr. LS-R 12° .................................................. ..........................N/A ......................#77019*
These cylinder heads offer the best combination of L92 and LS7 technology to deliver a bolt-on cylinder
head for high end street and racing LS1, LS6, LS2, L92 and LS7 applications. Starting with an all new A356
aluminum casting heat treated to T6 spec, these heads feature a 12° valve angle, extra thick deck and extra
material in the spring pockets for a heavy-duty casting that can be used with high-lift cams and heavy valve
springs. A sixth head-bolt boss is included for use on GM Performance Parts LSX blocks. The intake port
configuration is modeled after the factory GM L92 and accepts readily available L76/L92 intake manifolds,
including the Edelbrock Victor Jr. L92 #28457 / #28455. The combustion chambers are 67cc; however there
is plenty of material to machine the deck for smaller chamber volumes. Edelbrock has equipped LS-R heads
with large 2.100" intake / 1.60" exhaust seats and have spaced the valves closer together than factory L92
or LS7 heads – this enables Victor Jr. LS-R heads to bolt onto stock LS1/LS6 3.89" bore sizes! The
valve cover rail is raised to accommodate +0.200 longer than stock valves. Readily available GM LS7 1.8:1
rocker arms are recommended.
Bare (single) Complete (single)
Victor Jr. LS-R 12° .................................................. ..........................N/A ......................#77019*
