Don Terrill’s Speed-Talk

I use a mag bed plate grinder and a V block to make the chevy V6 style flats but it gives a lawn sprinkler effect- all around where it's needed better is grooving the lifter bore for hyd and edm for solids and no tiny tiny edm either some use two holes, some offset slightly jury is still out on that...

you could groove the lifter bores from the oil passage to the bottom but would still have to have oil to the lifters you do the side of the lifter bore on the leading edge- opening side 7200 rpm and no time to do the lifter bores? just use the AMC edm lifters and check your clerance hv pump hard sha...

I would not want the Boss ford syndrome Which TFS Mike? the head with the greater low end flow (got .050?) would take less lift (intake opening= duration) to supply piston demand so i'm thinking the high port head would require a smaller cam- be more driveable would that head support more velocity? ...

the intake/ exhaust ratio is really bad with that cam spec
way too much exhaust
you will loose expansion ratio
hot exhaust
and gas efficiency will suck
any quench?
post up revised compression

mike
your post june 2 showing the differences hr vs hft
I get different differences than you do
great info though
cheers

Crower still has reverse rotation cam blanks
be sure an put in kit that liimt thrust in ditributor shaft
gear moving tears up both gears
ask me how I know
go to forabodiesonly and PMndart19666 at crower or call and ask for shaun

big
thats controversial
I always thought yes and seems so with early sbc and bbmopar 915 head with tight quench (maybe plug location)
however on a turbo build with d cup we found quench area was too large and blowing out the fire
think quench vs squish
many modern heads have two or more quench pads

I run isky 6005 springs on my 250 chevy 6 Marine engine 1.94 intake maybe cut down- i forget light retainers many many hours over many many years no ti retainers for that spring as you know my motor goes 6500 sometimes but shorter stroke than yours Sissell head 305 pistons side ground and shot peene...

On the 1.75 rockers I was working with ported 915 heads .030 quench, Magnum intake and exhaust, 9:1 They do work on a short camshaft motor Intake only with a dual pattern cam similar to what the Enginmaster motors are- long flat torque curve I can see why they would not help when the cam is maxed ou...

Many times I would have killed for 10 hp

Camking has an unfair advantage- It's his cam
let's have the answer

i THOUGHT it was a 340 crank but oh well, two have been welded together several times
Is "Big Block Buick" any bigger than a small block bigger
I remember them being light for their size, but then so's am\ 500 Caddy

I for one hope he gets back 2 U I know how much time Racer Brown spent on the Datsun and others have spent on the little carefree car's valvetrain you do not want the base circle to be less than half the lift increase in other words if you just reduce the base circle the rocker is tilted mostly down...

Reminds me of the Data said to be from manifold MFG tests of BBM manifolds
Data shown for both 440 and 383
however the vendor only had one in house

I have a set of 1.75 vintage Sig Erson BBM iron rockers rebushed by Rocker Arm Re-builders (when they were in Carson CA they are now in Northern CA) also have the matching fit hard chrome shafts if you want to try them