Edelbrock Heads

H

hillperformance

Member
I just finished my first set of Edelbrock 409 cylinder heads. I wanted to share the results and determine if there is a market for a CNC version of this design.

Listed below are the airflow numbers:

Lift Intake Exhaust

.100 86cfm 73cfm
.200 178cfm 121cfm
.300 245cfm 161cfm
.400 283cfm 204cfm
.500 312cfm 242cfm
.600 315cfm 260cfm
.700 310cfm 272cfm

The test was conducted on a Saenz J-600 flow bench using Audie Technology Flow Pro software. The bore size was 4.320" @28".

Thanks.

Calvin Hill
Hill Performance
708-250-7420
 
impalamike.com

impalamike.com

 
Supporting Member 1
What's the price? Here's Bob Walla's heads:

Finally got flow #'s on a set of race ported heads.Best #'s to look at are the mid-lift ones.Depending on parts selected, prices for these will be around $4000 complete and ready to race. Other porting packages are in the works.

IN / EX
.100 - 101 / 73
.200 - 178 / 124
.300 - 251 / 171
.400 - 303 / 201
.500 - 330 / 223
.600 - 341 / 236
.700 - 353 / 245
.800 - 360 / 252
 
dynoray

dynoray

Well Known Member
Supporting Member 1
head flow

are these bobs raised intake port heads or the reg. 690 version? thanks,Ray.
 
H

hillperformance

Member
impalamike.com said:
What's the price? Here's Bob Walla's heads:

Finally got flow #'s on a set of race ported heads.Best #'s to look at are the mid-lift ones.Depending on parts selected, prices for these will be around $4000 complete and ready to race. Other porting packages are in the works.

IN / EX
.100 - 101 / 73
.200 - 178 / 124
.300 - 251 / 171
.400 - 303 / 201
.500 - 330 / 223
.600 - 341 / 236
.700 - 353 / 245
.800 - 360 / 252
Click to expand...

Prices start at $3,495.00 ready to bolt on. I can see these heads making over 700 HP on a well prepared 409 style engine.

Calvin Hill
Hill Performance
708-250-7420
 
09Jud

09Jud

Well Known Member
Supporting Member 2
dynoray said:
are these bobs raised intake port heads or the reg. 690 version? thanks,Ray.
Click to expand...

My BWR non raised port heads were ported by John walden and his flow numbers are right in line with these. I am 359 @700 on the intake. i know that flow benches and the results from them can differ.
 
H

hillperformance

Member
09Jud said:
My BWR non raised port heads were ported by John walden and his flow numbers are right in line with these. I am 359 @700 on the intake. i know that flow benches and the results from them can differ.
Click to expand...

Flow benches can be very different. I've tested the same heads on my bench along with Mondello's and they are within 2%.

My question is, what does a well ported set of iron heads flow?

Thanks.

Calvin Hill
Hill Performance
708-250-7420
 
BSL409

BSL409

Well Known Member
Supporting Member 6
09Jud said:
My BWR non raised port heads were ported by John walden and his flow numbers are right in line with these. I am 359 @700 on the intake. i know that flow benches and the results from them can differ.
Click to expand...

Jud, Do you have the flow numbers before the heads were ported and then after:dunno and how much for the porting
Thanks,
 
Fathead Racing

Fathead Racing

Well Known Member
Supporting Member 7
These are some flow #s I have for Bob's heads.

IN / EX
1- 77 / 73
2- 145 / 124
3- 217 / 171
4- 280 / 201
5- 323 / 223
6- 349 / 236
7- 359 / 245
8- 362 / 252

mild port heads
1- 91 / 78
2- 142 / 119
3- 208 / 152
4- 265 / 179
5- 288 / 198
6- 300 / 210
7- 305 / 218
8- 307 / 226
 
58 Apache

58 Apache

Well Known Member
Supporting Member 2
:? Ray I am confused with your numbers. are those flows the same head or are they different? the mild port numbers look to be less then the top.
 
09Jud

09Jud

Well Known Member
Supporting Member 2
BSL409 said:
Jud, Do you have the flow numbers before the heads were ported and then after:dunno and how much for the porting
Thanks,
Click to expand...

Sorry I dont have those flow numbers but Bob walla dose. I think the cost was $1500.00 for the porting
 
Fathead Racing

Fathead Racing

Well Known Member
Supporting Member 7
58 Apache said:
:? Ray I am confused with your numbers. are those flows the same head or are they different? the mild port numbers look to be less then the top.
Click to expand...

Top #s are race port, bottom #s are mild port/cleanup on the heads. If Bob sees this post he may want to critique these #s. These are #s that he sent me regarding my heads.
 
Skip FIx

Skip FIx

Well Known Member
Calvin I think I have a sheet somewhere where we flowed some older iron heads that had someone do some clean up 40 years ago. I'll try and dig them out.
 
region rat

region rat

Well Known Member
Supporting Member 3
impalamike.com said:
What's the price? Here's Bob Walla's heads:

Finally got flow #'s on a set of race ported heads.Best #'s to look at are the mid-lift ones.Depending on parts selected, prices for these will be around $4000 complete and ready to race. Other porting packages are in the works.

IN / EX
.100 - 101 / 73
.200 - 178 / 124
.300 - 251 / 171
.400 - 303 / 201
.500 - 330 / 223
.600 - 341 / 236
.700 - 353 / 245
.800 - 360 / 252
Click to expand...
I,ve had 6 or 7 shops get more than 350 cfm from my heads. Prices for porting have come down. Early jobs were more like R&D. A full race port can be had for $800-$1000.Heads will hover a around $2K

Race springs and titanium valve and custom part will jack that up.

Tha most I've heard anyone get from the E heads is 330. That will probably support a motor to give you whiplash. My heads may come closer to snapping your neck.

Bob
 
region rat

region rat

Well Known Member
Supporting Member 3
dynoray said:
are these bobs raised intake port heads or the reg. 690 version? thanks,Ray.
Click to expand...

Ray the max # of 360 would be for the standard 690 port. Dave Mills and Fast Fred on the forum have obtained #'s like that. Mike Starke @ CFM in Indy did the first set for us. He got about 363. He expected to get 15-20 more from the raised port. But remember. A bigger flow # doesn't always make more power. Bob
 
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