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Author
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Topic: Holley Street Dominator
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Wulfgar
Gearhead Posts: 193
From: SAn diego, CA, USA
Registered: OCT 99
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posted 02-27-2000 11:09 PM
 
I found a Holley street dominator(single plane) that will fit my 351C-2V heads. Right now i have the EdelbrocK 4V performer manifold to go along with the 2V heads...shuld i go with the Hlley or the Edelbrock?also, I found a set of 73 4V heads out of a pantera detomaso.....i have another Boss block that needs a set of heads(i wanna make this one more raced out for higher RPM usage) hence the 4V heads
shoul i go with them or dig around an wait fr some 70' quench heads? also, are the 73 pantera heads quench or open chamber?
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Daniel Jones
Gearhead Posts: 790
From: St. Louis, MO
Registered: AUG 99
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posted 02-28-2000 02:46 PM
The Holley Street Dominator is an open plenum single plane
but has ports that are smaller than the 2V head ports.
Works well as a rev limiter, though I do know one guy who
ported his and got it to work better than a Performer.
If you want a single plane, the Weiand Xcelerator is a
better choice but has ports larger than the 2V head so
must be port matched.Edelbrock makes a Performer 2V (originally called the F-351
2V) with oval ports that match the 2V head. Edelbrock also
makes a Performer 4V (F-351 4V) that has larger ports that
are shaped differently. Like the Xcelerator, it will need
port matching. A friend just finished dyno testing a 377 quench head stroker
4V Cleveland. It was surprising how well the Performer 4V
hung in there against the Blue Thunder. It might be
interesting to test an F-351 4V against the 2V Xcelerator
on the 2V Aussie motor. Dan Jones
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Daniel Jones
Gearhead Posts: 790
From: St. Louis, MO
Registered: AUG 99
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posted 02-28-2000 03:11 PM
Nothing special about the Pantera heads. In 1973, they were
garden variety 4V open chambers. I've got a like new pair
(17K miles, still have paint stripes on the valve springs)
from my '74 Pantera sitting out in the shop. You really
want quench heads and one piece, single groove, valves.Dan Jones
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Scott (69Mach)
Gearhead Posts: 719
From: Walnut Creek, CA USA
Registered: JUN 99
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posted 02-28-2000 05:22 PM
Dan, do you have the dyno data for the Performer vs Blue thunder??? I shelled out the extra $ for the BT and wonder if it was worth it.Thanks
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Daniel Jones
Gearhead Posts: 790
From: St. Louis, MO
Registered: AUG 99
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posted 02-28-2000 05:48 PM
Yes, I have the best runs for each of the three manifolds tested (Offy 360, Edelbrock F-351 4V, Blue Thunder). The data is in the form of plots however. I need to get the rest of the test set up but the F-351 4V did a lot better than expcted on a 475 hp engine. The biggest difference came from switching from a 650 DP to a new Holley HP series carb.Dan Jones
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