Here's the deal guys, we're starting up our development on LT1 heads & spring kits. We just finished the PRC spring kit (.660" lift springs) for the LT1 & now we're ready to work on cylinder heads. Here's our choices:

Option 1:
LT1 used castings cnc ported, upgraded valves & PRC Spring Kit
About $1099 complete ready to bolt on (900 using your cores)
Probably flow about 280cfm-285cfm

Option 2:
Edelbrock Casting Ported, Upgraded Valves, PRC Spring Kit
About $1499 complete ready to bolt on
Probably flow about 295-300cfm

The deal is the edelbrock offers a little more room for porting & a all around better casting. What I need to know from you guys is if you think it you guys would be more interested in one option over the other!>!>!>

Opinions & thoughts are more than welcome!!

 

The extra $600 (assuming someone supplies a good set of heads) doesn't seem worth the diiference to me. But I'm also cheap

 

if you want the best...you need room for more...and it costs. i personally have stock ported heads...they're fine for me.

but...if i ever have to upgrade i'm going AFR's raised runners with a custome manifold and a single plane setup for lt1 throttle body. the throttle body is big enough for whatever you need, and can be ported to a single blade for massive airflow. that setup will cost around 2500, plus all the other custom pipework i'll need to hook it up.

 

I voted edelbrock, and my only reason for that was the fact that no one offers a ported edelbrock head right now and I'd like to see what they are capable of.

I know that as delivered from edelbrock, those heads barely flow better than stock, and for the same money you could have a set of ported stock castings that will outperform them by a very large margin.

If your ported edelbrocks flow what you say they will, then they could potentially be a cheaper alternative to ported trickflows...I'm curious to see, being as very few people have given the edelbrock casting the time of day

 

What valves would you be putting in these heads?

 

I voted for stock castings. What kinda of valves and when will this be availble?

 

Hand ported OEM cores have pretty much proven to work dam well compared to about anything out there for these motors. My opinion is unless you are going to have the QUALITY of Advanced Inductions CNC abilities, I say don't even bother screwing around in this market. Even though Lloyd and I work together I will still give them props they actually do a good job putting a CNC port in a stock OEM LT1 casting. There is a reason that they charge what they do for that CNC time, cause it's done well!

Once you try to run the heads thru the machine as fast as possible the quality of the work goes in the toilet, that is something that is WAY too common in "CNC head porting" today, if you can even call it that. I'm sure Kenny Weld is rolling in his grave with some of what's going on today. It's not hard to find this work either, just throw the heads on a bench and they aren't going to lie, either they are going to shake the bench out of the room with turbulence AND/OR the bench is going to tell you they don't flow what they are advertised at. This is common in 243 Gen III castings, especially when a good valve job in them on a 3.900" bore can make them go 286cfm and a "ported" head doesn't even do that.

I'd guess you guys have your hands in deep enough with Edelbrock or your supplier down there in Texas that you can get those heads for cheap apparently. Might as well do that since your going to junk and weld up a ton of OEM castings trying to run them thru the mill due to core shift and NUMEROUS other problems. At that price NOBODY is even going to try to compete with you in the market for a ported Edelbrock LT1 casting and it's in line with everyone elses ported OEM stuff so I say lets party. If you think it's going to make more power then this is the OBVIOUS choice.

End of my rant.... but hey the title of the post is "YOUR ADVICE NEEDED!"

Bret

 

Why not just do both of them? If the quality is good, and if you can produce them at that price you will pretty much dominate the aftermarket LT1 head market. BTW I voted edelbrock since there are already a ton of choices to go with stock castings, but no one produces an aftermarket casting for a price close to that.

 

And about what CC would the runners of both heads be?

 

Any word on these yet?

 

Go for it, I really dont care which one you choose. Im just glad another legit vender has faith in the LT1.

 

Any updates on this? Very interested to hear..

 

As long as they perform i will pay. My hand ported LE2 heads are top notch.

417rwhp 393rwtq thanks to Lloyd, Bret and good ole CamaroZ28.com


stock castings are fine

 

I don't have much faith in anyone that throw out a hi lift flow number
there is alot more to it than just that big number

 

Hey guys, ya'll do know this post is 4 months old. Bret must have skeered him away.