any suggestions with my build Thank you..

[chpseat987]

Hello thanks for looking

I am building a 427 for my bracket car.

this is what i have soi far

454 block
427 crank
oval 396 heads ported and polished
team g manifiold also polished and matched to heads
a ? cam with 635 lift ( Bieng profiled by machinist)
large valves 219 intake 188 exaust
ordered 12.5 to 1 pistons
solid lifters and roller rockers
deck has been zeroed
I have to pay the machinist to clay the pistons for me ( Im not smart engough)
using T bearings ( Cost)
2" headers

any toughts or suggetions on this build I would really appreciate it this is my first BBC build and this forum has helped with alot of questions.

Also again on the evacuation kit would i gain or loose using it or are the breathers on the valve covers enough 1 on each.

thank you again I welcom all comments. I just want a strong consitant bracket car that i can trust.

[chpseat987]

sorry I forgot I am goign with a 60 over on the bore. Kind of important.

[FIDO]

I don't no how hi you plan on cranking this motor,but to get that team G to work you may have to crank it upwards of 6000 RPM'S,I use Victor JR intakes on 454 round or oval,Get a electric fuel pump/At least 750 dbl pumper carb,and forget stock HEI-Ignition,Put a MSD Crank-trigger on it or atleast up grade to MSD 6 AL or 7 AL and coil ETC ,Go to track play with jets and timeing and have fun.

[FIDO]

Sorry Chpseat,I meant Oval and Rectangular

[Dave Severson]

"port and polish" on the heads is kind of vague.... Have the heads been flow checked at all??? What cc combustion chamber, and are they open or closed chamber????

Polished runners on the intake aren't a good idea....the air/fuel mixture will tend to separate and form fuel droplets.... The intake should retain a rough enough surface to keep the fuel and air mixed... The exhaust ports can be smoothed (polished) as once the mixture is fired, only thing left to do is get it the heck out of there and make room for the new!!!!!

What is the duration and lobe center on the cam? What ratio rocker arms, and what kind of ignition?????

[pat mccarthy]

the team g is a good intake on the rest just sounds like a nother bbc build no big deal if you machinist is working over the cam numbers there not much i can help you with like said over ported stuff you have to watch out for it could be a pig 427 reworking the intake runners is a big no no only a good bowl job and a 4 angle seat job is all you need and on the ex side full radius cutter and bowl work and some small port work less you have flow numbers to back up the all the work. sorry but you could have over work junk. bigger is not allways better on the intake or EX the short side radius is ok if someone took the very small amont that is there they will flow poor on the ex side

[FIDO]

Chpseat you mentioned consistency the car is what it is,Don't no your racing back ground but it is you your self that has to be consistant.I see it all the time at the track peaple make to many changes at once and when things don't go right blame it on car.get this car built go to track get it dialed in be happy with how fast it go's for a year or two.What are you going to use for a Cooling system.

[chpseat987]

I am using an Elec pump rated at 100 gal. I have MSD ignition the 6al. A Holly 850 carb, and ya the cam were still looking into for profileing it but we do know it has a 630 lift so far, the rockers are 1.7.1. I just left the machine shop and my heads are Junk, I bought this car with alot of false pretences I found out. So I have to make what I have work I am on a tight bujet. My machinist told me to try and find a set of oval ports, 112 or less cc open chamber the heads, The heads I have are closed chamber and there is evidance of the intake valves playing with the top of the piston and looks like the piston has slapped the heads as well. So in order to get the compresion to were I was told it was, I have to replace the pistons with 12.1 higher dome but I need open chamber heads. As far as consitancy I cant agree more with you FIDO I have been at the track alot with a friend helping him but this will be my first season as a driver but if the car stays as constant as I can get it. it will all be up to me.

[chpseat987]

Well i found a set of alum heads open chamber 115cc's oval port they are ProComp heads my machinist said they will work great he may mill them dowm a little to around 110cc's.

[pat mccarthy]

i will have a set to sell canfield 310 ports new valves 2.250 1880 ss pbb comp valves cnc chambers they will be on E bay very soon before the end of this week low time on them never hurt heads have never been cut

[chpseat987]

now you tell me