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Victor Jr. 24° Rectangle Port
This 24° is the latest B/B Chevy head from Edelbrock. Starting with a A356 aluminum casting — heat treated
to T6 spec, they feature an extra thick deck and extra material in the spring pockets for a heavy-duty casting
that can be used with high-lift cam and heavy spring combinations. Edelbrock equips the complete heads
with choice of spring packages to suite hydraulic or mechanical roller. Choose a hydraulic spring package
for flat tappet or roller cams up to .700" lift. Mechanical cam spec heads include Manley dual-spring valve
springs & titanium retainers good for up to .880" lift. The 300cc rectangle ports produce impressive flow
and great power on competition big-blocks up to 510 c.i.d. with 4.310" or larger bore. Exhaust port exits are
raised .534" to greatly improve exhaust flow & power. Two combustion chambers are offered to meet desired
compression ratio.
Cylinder Head Specifications |
| Combustion chamber volume |
106cc & 118cc |
| Intake runner volume |
300cc |
| Exhaust runner volume |
128cc |
| Intake valve diameter |
2.25" |
| Exhaust valve diameter |
1.90" |
| Valve stem diameter |
11/32" |
| Valve guides |
Manganese bronze |
| Deck thickness |
9/16" |
| Valve spring diameter |
1.550"/1.635" |
| Valve spring maximum lift |
.700"/.880" |
| Rocker stud |
7/16" |
| Guideplate |
Hardened steel |
| Pushrod diameter |
3/8" |
| Valve angle |
24° |
| Exhaust port location |
Raised .534" |
| Spark plug fitment |
14mm x 3/4 reach, gasket seat |
| Made In |
USA |
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Technical Notes: Matching stud girdle #7797 must be used with stud mounted rocker arms. These heads require
the use of a 14mm, 3/4" reach, flat gasket spark plug with a heat range appropriate to your application. |
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| Victor Jr. 24° with 106cc Combustion Chamber |
Bare |
Complete |
| Complete with springs for hydraulic cams (up to .700" lift) |
N/A |
77489* |
| Victor Jr. 24° with 118cc Combustion Chamber |
Bare |
Complete |
| Complete w/ springs for mechanical roller cams (up to .880" lift) |
77469* |
77459* |
| Complete with springs for hydraulic roller cams (up to .700" lift) |
77469* |
77479* |
| Matching stud girdle for Victor 24° with adjustable nuts (pair) |
N/A |
7797 |
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Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2O
| #77479 | #77459 |
| Valve Lift |
.100" |
.200" |
.300" |
.400" |
.500" |
.600" |
.700" |
| Intake |
72 |
140 |
2130 |
273 |
318 |
342 |
346 |
| Exhaust |
64 |
122 |
167 |
199 |
223 |
240 |
251 |
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AMC
Small Block
