B-Body HP Manifolds
| It's a known fact
that B-body HP manifolds will work with the big blocks, with a few possible
modifications. Tom Swope, from Accurate
LTD, was kind enough to send along the casting numbers, as well as the
changes that may be needed....
Left side for B
or RB, The steering shaft sleeve must be cut back to use these. Also if used with a 4-speed,
the z-bar ball/stud at the bell housing may need to be moved rearward to angle
the z-bar for exhaust pipe clearance.
Right side for B
or RB, For RB use, an angle cut of 5 degrees at the head port end of the manifold to
tilt the flange end towards the oil pan will add extra fender well clearance. The heat
riser should be removed.
2806900, # 2899879
Pictured below are the
Hp's on a 383 '68 Dart, and farther down, on a '67 440/4-speed Dart GT
|| In these three pics,
you can see the general placement of the driver side manifold. Being up
out of the way, they will work with power steering and brakes. Note there
was even room for the homemade steering shaft extension for the manual
box. It does come close to
things at the rear, but pretty much fits in like it was made for it. The exception here is
the outer sleeve of the steering column.
You can see it was shortened
up to the firewall for clearance, which means that these manifolds will
NOT work with a column shift.
|| On the passenger
side, theres plenty of room all around. Plug access is typical a-body....#6
got an access hole drilled in the fender to make easier. I will say that the exhaust
on this car was completely home-made using standard bends from the parts
store. No special bends were needed to get the pipes down from the manifolds.
| Now on the 440, things
are a whole lot tighter. They work, but clearance
is at a bare minimum as you can see. Heat could be a problem in this installation.
Also beware that these cars are all very different from one another and
where one has 1/4" of clearance, the next might have interference. When
things are this tight, theres no way to say if it will work on all of them
without some work.
|| Although the passenger
side manifold gets alot closer to the fenderwell, it's also moved upwards,
which helps to maintain a small amount of clearance.
Pictured Below is the high-flow driver side manifold made by Accurate LTD. This manifold replaces the the OEM bigblock A-body unit and flows much better than the squeezed OEM casting.