Is aftermaket heads worth going to vs. stock worked
#21
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I agree with Adamantium. And if I were wanting a budget sollution aftermarket head, I would try a set of cnc Procomps on Feebay at 699 or best offer. I have bought both Procomp sbc and bbc heads from this seller and have been happy with them.
#23
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Also something else to consider the springs that the trickflow heads come with might not suffice his custom cam.
Its pretty close now that i look at it. Very close between OEM castings and the TFS.
$400 for the 243s (could've cut more off if he found some 799's)
$995 for the 226cc porting from AI
$219 for BTR spring kit
$140 Trunion upgrade(cheapest ive found from a quick search)
(optional) $200 for bigger stainless valves.
$1775 for the trickflows with the PM guides.
$140 trunion upgrade
$?? for the spring upgrade if he needs it.
#24
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damn, these are all good points fellas, say if i did go with the 243s with AI, they have these options im not to sure about:
Bronze Guide Liners installed & honed to ideal clearances to refurbish worn out guides. - Cost: $125
Replace OEM guides with Full Bronze Guides & hone to ideal clearances - Cost: $250
which should one of these options is recommended?
Bronze Guide Liners installed & honed to ideal clearances to refurbish worn out guides. - Cost: $125
Replace OEM guides with Full Bronze Guides & hone to ideal clearances - Cost: $250
which should one of these options is recommended?
#25
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damn, these are all good points fellas, say if i did go with the 243s with AI, they have these options im not to sure about:
Bronze Guide Liners installed & honed to ideal clearances to refurbish worn out guides. - Cost: $125
Replace OEM guides with Full Bronze Guides & hone to ideal clearances - Cost: $250
which should one of these options is recommended?
Bronze Guide Liners installed & honed to ideal clearances to refurbish worn out guides. - Cost: $125
Replace OEM guides with Full Bronze Guides & hone to ideal clearances - Cost: $250
which should one of these options is recommended?
You dont want bronze guides. If you go bronze ypu will need roller rockers.
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i can get those btr springs for $195, but not sure if its a kit. I got $1395 for the 243 heads with the machining, i havnt factored in the two options on post#24 or spring kit and trunion upgrade. $1695 for the tfs 220 with springs i may not be able to use but good head for future upgrades
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#28
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I thought that applied only to aftermarket castings. I was lead to believe that you needed rockers with bronze guides because of the valve geometry of the aftermarket castings. The Powdered metal stuff from what i have read just is more resistant to the abuse from the stock rockers on aftermarket heads valvetrain geometry..
Can someone clarify this?
damn, these are all good points fellas, say if i did go with the 243s with AI, they have these options im not to sure about:
Bronze Guide Liners installed & honed to ideal clearances to refurbish worn out guides. - Cost: $125
Replace OEM guides with Full Bronze Guides & hone to ideal clearances - Cost: $250
which should one of these options is recommended?
Bronze Guide Liners installed & honed to ideal clearances to refurbish worn out guides. - Cost: $125
Replace OEM guides with Full Bronze Guides & hone to ideal clearances - Cost: $250
which should one of these options is recommended?
Can someone with some hands on knowledge chime in on this?
Last edited by adamantium; 01-08-2013 at 08:43 PM.
#29
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Non roller rockers on bronze valve guides wear them prematurely. Most of the time its geometry related. Now having said that some aftermarket heads come with bronze guides, but with a custom rocker rail. My aftermarket LS3 heads from tsp are that way and you can run either option without worry.
#30
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goal is to make over 400 rwhp. getting a custom speced cam also. the car will be street/strip and weekend driver. the work to the heads would cost me around $400 to the guy i was going to take them to but not sure if he has experience in ls motors. i think i will try AI and TEA with the 243s seems they would make the most hp for the money
M6 with 5.3s
https://ls1tech.com/forums/dynamomet...-gm-5-3-a.html
A4 with 241s
https://ls1tech.com/forums/dynamomet...m-results.html
M6 with High Compression 241s
https://ls1tech.com/forums/dynamomet...o-results.html
#31
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Non roller rockers on bronze valve guides wear them prematurely. Most of the time its geometry related. Now having said that some aftermarket heads come with bronze guides, but with a custom rocker rail. My aftermarket LS3 heads from tsp are that way and you can run either option without worry.
OP honestly if you are dead set on dyno #'s then you can easily do it cam only. Personally id be more worried about how the car performs, only way to tell that is at the track with trap speeds. Ive seen low 4xxwhp f-bodys go within a car length of lightened high 5xxwhp-low 6xxwhp cobras. Dyno's are tools for tuning. GL!
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those tfs 220s come with bronze guides, which sucks cause i want to run stock trunion upgraded rockers, but i can run them with that powder coat (extra $75). this is what i came up with
TFS 220s-$1695, btr spring kit-$219, Trunion upgrade-$140, BTR lifters-$190, powder coat guides $75 with a total of $2319
AI 232cc head (243s)- heads $400, machine price $995, BTR spring kit $219, Trunion upgrade $140, BTR lifters $190 with a total of $1944
I would end up saving $375 with the AI 232cc heads but fully modified and trickflows not.
Hard decision to make, since its so close of pricing it would prob be a better investment to get the tfs 220s
TFS 220s-$1695, btr spring kit-$219, Trunion upgrade-$140, BTR lifters-$190, powder coat guides $75 with a total of $2319
AI 232cc head (243s)- heads $400, machine price $995, BTR spring kit $219, Trunion upgrade $140, BTR lifters $190 with a total of $1944
I would end up saving $375 with the AI 232cc heads but fully modified and trickflows not.
Hard decision to make, since its so close of pricing it would prob be a better investment to get the tfs 220s
#35
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Here is a comparison that Hot Rod mag done on heads, interesting that the Procomps performed the best. (made the highest hp)
http://www.hotrod.com/techarticles/e...t/viewall.html
I have been cutting on a set of 317s for a week now for my current project, but after more thinking I am just about to order a set of these at 699.
http://www.hotrod.com/techarticles/e...t/viewall.html
I have been cutting on a set of 317s for a week now for my current project, but after more thinking I am just about to order a set of these at 699.
Last edited by TurboMonte100; 01-09-2013 at 07:24 PM.
#38
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those tfs 220s come with bronze guides, which sucks cause i want to run stock trunion upgraded rockers, but i can run them with that powder coat (extra $75). this is what i came up with
TFS 220s-$1695, btr spring kit-$219, Trunion upgrade-$140, BTR lifters-$190, powder coat guides $75 with a total of $2319
AI 232cc head (243s)- heads $400, machine price $995, BTR spring kit $219, Trunion upgrade $140, BTR lifters $190 with a total of $1944
I would end up saving $375 with the AI 232cc heads but fully modified and trickflows not.
Hard decision to make, since its so close of pricing it would prob be a better investment to get the tfs 220s
TFS 220s-$1695, btr spring kit-$219, Trunion upgrade-$140, BTR lifters-$190, powder coat guides $75 with a total of $2319
AI 232cc head (243s)- heads $400, machine price $995, BTR spring kit $219, Trunion upgrade $140, BTR lifters $190 with a total of $1944
I would end up saving $375 with the AI 232cc heads but fully modified and trickflows not.
Hard decision to make, since its so close of pricing it would prob be a better investment to get the tfs 220s
Heck, a fresh set of LS6 stage 2.5 Texas Speed Heads will run you $1600. That's with dual valve springs, and setup perfect for the trunnion upgrade. Or if you have a set of 243's to send in it will be something like $400 less!
In you est. cost, don't forget, head gaskets, header gaskets, intake gaskets( may not be needed), pushrods, spark plugs (mine as well), and tune.
I'm sure Jake Fusion is about to chime in here, I just started the infamous ported head war; TSP v AI v WCCH v TEA. Here we go......