hello fellow hotrodders I\m thinking to change my set up with the addition of a weiand 144 on my 406 sbc. Im going to pull the motor this winter and change my pistons,forged again to get 8:1 compression port my 72cc rhs heads keep my scat forged I beam rods 7/16 cap screws and the stock crank which has been cross drilled and chamfered, the whole unit will be rebalanced due to the new pistons change the power valve to a boost referenced one on my hp 750 holley re jet it, the cam I was thinking to put in is a hydraulic roller 233/[email protected] 530 int 545ex 114lsa 110 lca would that combo work I already have a roller set up, I have a 110 GPH mechanical fuel pump its a rpm edelbrock said to be good for 600hp which I know is not feasable am I on the right track.I\ve always wanted a blower after going for ride in 1980 vette with a 355 and a 144 on it ,i cant get it out of my head. it was what convinced me to go this route. Any thoughts would be greatly appreciated.
400witha 144
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400with a 144
you are right about the boost with a different pulley configuration Weiand told me I could get 10 lbs but that would stress that little huffer. there direction also leaned toward a 177 i dont mind the 671either but as many of us do , I have a budget to work with, I could squeeze by with a 177 but the 671 set up is out of my range for now,so i will either sit tight and enjoy my current set up and save my pennies for a 177 or 671 as long as I dont have to cut corners,and set it up properly,has anyone with a 400 sbc tried ether configuration,if so any feedback would be greatly appreciated,Thank you again everyone for your input.
you are right about the boost with a different pulley configuration Weiand told me I could get 10 lbs but that would stress that little huffer. there direction also leaned toward a 177 i dont mind the 671either but as many of us do , I have a budget to work with, I could squeeze by with a 177 but the 671 set up is out of my range for now,so i will either sit tight and enjoy my current set up and save my pennies for a 177 or 671 as long as I dont have to cut corners,and set it up properly,has anyone with a 400 sbc tried ether configuration,if so any feedback would be greatly appreciated,Thank you again everyone for your input.
Oh I understand completely, good friend of mine who races locally every weekend has a 73 firebird with a blown 383, he runs a 142 Altho small but has a ton of fun with it.. He runs a real conservitive setup. 4lbs boost, 32 totall timing. He runs consistent 7.50 in a 1/8 mile and drives it to the track and back home every weekend.. He has dart pro1 heads, scat bottom end
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My truck has a 305 with E force supercharger. The pulley was switched to a 3" and my gauge is reading 10 psi at 5200rpm. It is a plain 305 with performer cam and Vortec 906 heads milled to make 9:1 compression. Summit headers and 3.73 and 3000 stall. It moves . The 85 mph speedometer can whip around in 10 seconds. This is my daily driver and installed the blower in july. This winter I will see how it reacts to the temp change. So far the mileage is the same as before, which is surprising for the acceleration increase.
Forced induction is, the way. Cam and displacement add up, but once you can alter the boost you enter some real fun. Cam is just moving the curve around. Power is limited by the fuel type and internal durability.
Check your driveline. Make sure you have good U joints, a trans at least upgraded TH350 quality with shift kit, and a 8.5 rear.
Pursue this dream. It is fun fun fun.
Forced induction is, the way. Cam and displacement add up, but once you can alter the boost you enter some real fun. Cam is just moving the curve around. Power is limited by the fuel type and internal durability.
Check your driveline. Make sure you have good U joints, a trans at least upgraded TH350 quality with shift kit, and a 8.5 rear.
Pursue this dream. It is fun fun fun.
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5,248 Posts
I'd go with the 177. You'll be really pushing that 144, which means it'll wear faster, it'll run hotter and if at some point you end up upgrading your 406 (say you get a swingin deal on a set of heads, or one of your heads gets a crack in it), you are ahead of the game. Cooler boost is better boost. Speaking of cooler, make sure you're running a good radiator, fan, trans cooler - if applicable, and your oiling system are all up to snuff.
406 with a177
I have a a melling high volume biilet gear oil pump 3/4 inlet 7 quart moroso pan baffled and windage tray, high flow water pump from flowcooler 3 core rad with steel fan and a corvette clutch fan ,3/4 hub vs 5/8,180 thermostat,during the hottest of summer it reached 190 in traffic,other than that it stays between175-183 constant,cam change and and a dished piston forged,I have RHS aluminum 72cc heads motor is afull hydraulic roller already.
The 177 though does not have teflon coated rotors where as the 144 does ,does that mean it will not seal as efficiently as the smaller one given any one rpm setting,I realize for every rpm it will draw more air than the 144,jetting wise and power valve any recommendations,it's a got a M-21,3:42 rear gear,weight is 4000lb'scam will be 233/[email protected] ,530 int/545ex 114 lsa,110 ,lca ,I now have a holley ultra hp 750 cfm with electric choke but I wiil need to change the power valve to a boost referenced one as well as the accelerator pumps to 50cc from 30cc which it has now as well as the jets i'm running 68 primary and 74 secodary the car runs great and the A/f ratio is 13.5-13.9 at cruise and 12.1 under load full throttle accordiding to the dynojet when I had it dynoed in may,
Again if any one can steer me in the right direction with the 177 weiand as to P/V and jetting that would be greatly appreciated.Thank you everyone.
I have a a melling high volume biilet gear oil pump 3/4 inlet 7 quart moroso pan baffled and windage tray, high flow water pump from flowcooler 3 core rad with steel fan and a corvette clutch fan ,3/4 hub vs 5/8,180 thermostat,during the hottest of summer it reached 190 in traffic,other than that it stays between175-183 constant,cam change and and a dished piston forged,I have RHS aluminum 72cc heads motor is afull hydraulic roller already.
The 177 though does not have teflon coated rotors where as the 144 does ,does that mean it will not seal as efficiently as the smaller one given any one rpm setting,I realize for every rpm it will draw more air than the 144,jetting wise and power valve any recommendations,it's a got a M-21,3:42 rear gear,weight is 4000lb'scam will be 233/[email protected] ,530 int/545ex 114 lsa,110 ,lca ,I now have a holley ultra hp 750 cfm with electric choke but I wiil need to change the power valve to a boost referenced one as well as the accelerator pumps to 50cc from 30cc which it has now as well as the jets i'm running 68 primary and 74 secodary the car runs great and the A/f ratio is 13.5-13.9 at cruise and 12.1 under load full throttle accordiding to the dynojet when I had it dynoed in may,
Again if any one can steer me in the right direction with the 177 weiand as to P/V and jetting that would be greatly appreciated.Thank you everyone.
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