Looking for some advice on what cfm heads to run on my 427, Solid roller motor, Lunati 50204 cam, Sealed power L2268f 030 pistons, 13-1 compression with a 119 cc head.Eagle rods and crank, balanced,Turbo 400. In a 69 chevelle, 4.10 gear 29 inch tire, 4200 stall, no trans brake. I am thinking of Edelbrocks 60459, or maybe Darts. Anybody using Canfields? Its going to be race only so driveability or vacuum does not matter, I would like to keep cost down, but do not want cheap heads. Thanks! Bill.

Canfields work well. Have a friend that ran low 11's with them on a 468 with 3.55 gears in a 71 Monte

Canfields work well. Have a friend that ran low 11's with them on a 468 with 3.55 gears in a 71 Monte
Would a set with 310 intake runners be too big? I am looking at a set of part #1826. Thanks. Bill

Canfeilds are nice heads but Brodix Race Rites w/ CNC option are a little nicer. Give Mike Lewis a call, Phone: 707-984-6103. Mike will get you a great price along with excellant service. I am exteemly happy with mine.

the piston L2268AF are rated at 11.25 with 106.9 cc head
i use then you have no more 10.5 compression with 119 cc head
I think for the head if you have the money to buy it AFR are my first choice

AFR's are the best if the $$ is avail. Canfields are very good heads. It'll take $1000 to bring old iron 781 or 049s to that level imho.

1. I would highly suggest using a lighter/better piston like an SRP.
2. Brodix race rites would be a great choice.
3. AFR 305's would be good as well, but would make peak power higher up than the Brodix. I wouldn't use the Edelbrocks unless you just don't have the money for one of the others. There are piston fitment issues and they are not that great to begin with.
4. If you are buying a crank and rods anyway, I would build at least a 460.

I ran that cam for several years. Went 6.29@108 in my Camaro(468). Ran best when I would wind it to 7k. For a 427 that would be more like 7200-7400. I ran it with some heavily ported 781's. Doing a set of 781's right will cost you more than $1000 IMO. I just built a set and if I had charged regular machine shop prices the bill would have been about $1400. Discounted it was still $1100.

Good Luck!

the piston L2268AF are rated at 11.25 with 106.9 cc head
i use then you have no more 10.5 compression with 119 cc head
I think for the head if you have the money to buy it AFR are my first choice

I wrote down wrong part number for piston, They are actually L2239nf 030, What is the comp ratio for those?

1. I would highly suggest using a lighter/better piston like an SRP.
2. Brodix race rites would be a great choice.
3. AFR 305's would be good as well, but would make peak power higher up than the Brodix. I wouldn't use the Edelbrocks unless you just don't have the money for one of the others. There are piston fitment issues and they are not that great to begin with.
4. If you are buying a crank and rods anyway, I would build at least a 460.

I ran that cam for several years. Went 6.29@108 in my Camaro(468). Ran best when I would wind it to 7k. For a 427 that would be more like 7200-7400. I ran it with some heavily ported 781's. Doing a set of 781's right will cost you more than $1000 IMO. I just built a set and if I had charged regular machine shop prices the bill would have been about $1400. Discounted it was still $1100.

Good Luck!


I agree with Jay! :thumbsup:


Steve

On my 427 the only way to get to 13-1 compression with a 118 cc head was a set of JE race pistons. I think these had 54 cc domes on them. When I had the speed pro pistons they were 2308's and they only made 11.7-1 compression.

Short strokes need alot of dome to get the compression.

I am running the canfield 310 heads , they have the 113 chambers CNC. i cant remember the piston part number (old discontinued closed chamber trw,like.580 dome).around 11.2 compression. Anyway i am running a 260-270 roller with .700-.685 lift 107 lsa. the carb is a1050 on a victor454r. The car is light 62 nova tubbed,4.86 gear ,30 inch tire.
I havent ran the car yet,but i have dropped the transbrake @4500 and the car absolutly ripps. I am hoping for 10.20 10.30 e.ts
when i recieved the heads i thought the ports were way to big SO i actually cc,d them and came up with 305-308.
I dont think you can go wrong with canfields, infact my opinion is they are a close second to afr305 heads.BUT CHEAPER!!

i'm running the Dart - Iron Eagles with a 308 runner, haven't run at the strip with them yet but they did feel strong on my 427, from 3500+rpm on up

for the piston L2239NF the specs are weight 756 grams 43.1 cc dome
with a 0.008 deck height a 0.022 gasket and 119 cc head
13.08 compression with a 0.039 gasket you lower the compression to 12.51
use that link for the flow bench of almost all chevy heads http://racingfeed.com/downloads/chevy_flow_data.pdf

Per jbird!

"4. If you are buying a crank and rods anyway, I would build at least a 460."..

Why stop there and go a 496 if you have to buy a rotating assembly b/c even a mild 9.8 to 1 CR'd, 496 should make right at 550 hp easy, imho!!

It will just be a great big "tow-truck" grunt motor that will flat get w/ it, imho!!

And it can grow to like 650 hp too................

pdq67

I decided to go with the Canfield 310, I found a set all ready to go for $1200. I hope they are as good as advertised. I have not received them yet. Do canfields require special stud girdles?

i think you made a good choice they flow greate for the price they are.

i have a 427 4 bolt main truck block (tall deck). standard bore. if i bore it .60 what would that make it? could i use a 396 steel crank and 454 rods in this rebuild.or does the tall deck take a special rod and piston/

With a 396 or 427 crank it will be a 439 or 440 depending on who you ask. I think the popular combos use a .400 longer rod and stock pin location (short deck) pistons.

I decided to go with the Canfield 310, I found a set all ready to go for $1200. I hope they are as good as advertised. I have not received them yet. Do canfields require special stud girdles?

I personally have never run stud girdles, and wouldn't in the future. Not needed in most cases IMHO.

I decided to go with the Canfield 310, I found a set all ready to go for $1200. I hope they are as good as advertised. I have not received them yet. Do canfields require special stud girdles?


No, and you done good! I have $200 more in a set of GM990s that are less of a head.

10.25:1 minimum, and 243-250 @.050 minimum, and you have a nice ride. I'm talking 427 here.11.8-11.6ET.

Using a Luntati 50204 solid roller cam , 13-1 compression. Hope it runs that good. Thanks. Bill