Hi Guys - I have decided to rebuild a truck engine from the ground up.
The Idea is to use the engine as a development mule for Manifolds I am playing around with
I used Dyno 2000 to run a lot of simulations on witch route I should follow.
At this stage things looks like this
9.8 CR
Standard Back cut valves, pocket porting, blending 5 angle valve job
OR MP 1.7/1.44 valves, with the same
Cam
.450 lift, 254 254 Duration 108 centreline
Port matched to a experimental Chrysler RSA 4 BBL Manifold with turned carb and plenum divider
OR Chrysler RSA long ram tube manifold with 2 X 36DCD7 Weber
Will try like crazy to have a dual plane like setup on the engine
6-2-1 Headers - ceramic coated inside and out - 2 1/2 inch to the back
The whole rotating assembly balanced and blue printed
Ignition
Recurved Chrysler electronic Dizzy, MSD Blaster 3 8.8MM Accell wires
HEI conversion OR MSD 6A
The whole idea is a High torque and a wide power band
Torque curve, according to the sim is very flat from 2000RPM to 3500RPM with 285 Ft/lb at 2500 to 3000 rpm dropping to 278 at 3500 oh yes- 282 available at 2000
Peak HP 241 at 5500
The whole package will end up in my 1968 FB Barracuda in the end
SO
Opinions anybody - the running, 20000 mile truck block will be dropped of middle November as a gift from a buddy of mine
This engine is still in the planning stage as far as head mods is concerned
The rest will stay as close to the sim as possible
I entered the std 225 /6 info into this program and it kicked out a 8 hp more conservative output 140 instead of 148 - pretty acurate
One thing is clear if ever there was a asthmatic cylinder head, it is the one on the 225!
Very restrictive in every way - especially the exhaust system and valves.
The biggest output change is a good set of headers, then head massaging
Unfortunately it does not include ignition changes but still - up rated ignition will only improve matters
Ta
there is going to be some shocked hot hatch drivers !
