|03-02-2012, 08:51 AM||#1|
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BBC Heads, 2 pair, Big Chief & BB-2's, hard core race set up
I have 2 sets of used heads.
1 set is a conventional Brodix combination.
1 set is a big chief style, that was an 18 degree NHRA Pro-Stock legal, and converted to ~14 1/2 degree.
Brodix BB-2's complete package, will not separate.
Custom Brodix BB-2's, professionally ported by EPD, pressed in washers upgrade.
Includes new custom Manley severe duty valves, upgraded to 2.30 intake.
Fresh professional series Jesel shaft system
New Nextex triples, solid roller up to ~.900
They also have been updated for either a stock block, or a professional race block!!
New custom Smith Brothers push rods, with spares for 9.8.
Custom Cometic MLS head gaskets, designed for nitrous
New ARP head studs
New Howards cam solid roller, swap model, very mild, bracket race, some nitrous ok
Manufacturer's Part Number 124033
Part Type Camshafts
Product Line Howards Cams Max Effort Camshafts
Summit Racing Part Number HRS-124033
Cam Style Mechanical roller tappet
Basic Operating RPM Range 4,800-8,000
Intake Duration at 050 inch Lift 286
Exhaust Duration at 050 inch Lift 296
Duration at 050 inch Lift 286 int./296 exh.
Advertised Intake Duration 320
Advertised Exhaust Duration 334
Advertised Duration 320 int./334 exh.
Intake Valve Lift with Factory Rocker Arm Ratio 0.800 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.748 in.
Valve Lift with Factory Rocker Arm Ratio 0.800 int./0.748 exh.
Lobe Separation (degrees) 112
Camshaft Gear Attachment 3-bolt
Intake Valve Lash 0.025 in.
Exhaust Valve Lash 0.025 in.
Some nitrous OK.
New Howards roller lifters tall body
I have available for additional cost:
Edelbrock race ram, dual dominator with complete Pro fogger, 9.8.
Dart single dominator 9.8 high rise open plenum
Edelbrock single dominator 10.2 high rise open plenum
Both single carb intakes have been professionally ported.
These are the heads that were on my 468" when I ran 9.31 N/A and 8.50, 159 mph @ 3200 lbs in the Camaro
with a 150 hp plate & 8.30 N/A and 7.60, 175 mph @ 2600 lbs in the Lumina.
With the proper piston & compression,
they should make ~800 HP single carb,
and 850+ HP with tunnel ram normally aspirated,
with nitrous, how fast do you want to go??
The heads have ~30 runs since redone.
Sold as is, and last pass was smooth & strong,
running 7.60 into a 35 MPH head wind.
Can be bolted on as is, and there is plenty of runs left before freshening is needed.
Unless you have a tank??, these will run in the 9's with ease N/A and in the 8's with nitrous or light car.
BBC Pro Stock Heads & sheet metal intake, "Big Chief" type head, ~14.5* valve angle, Pontiac #427.
Made & used personally by Steve Schmidt.
Massive trick & custom work.
Deal includes, custom stands, valve covers & gaskets,
brand new Manley custom Titanium valves, INT & EX,
fresh Professional series Jesel rockers, still in bags, piston mold.
Paid over $2000 just in valves.
These were used 1 season in NHRA Pro-Stock.
1 season in NHRA comp elim.
Never sprayed or boosted.
Heads were pressure checked when I ordered the valves.
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