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FE Power Forums => FE Technical Forum => Topic started by: mygasser on April 14, 2026, 10:13:45 AM

Title: speedmaster aluminum heads and roller rockers
Post by: mygasser on April 14, 2026, 10:13:45 AM
before i start please don't let this dissolve into another china bashing thread. i'm in the uk so any heads i buy will be 'overseas' so....
 has anyone used speedmaster aluminum heads and/or their aluminum roller rockers? i've got my roller cam and lifters now so i'm thinking why not get better heads and rockers now. it'll mean the 'to order' pushrods won't have to reordered if i do the change later so..... makes sense to me anyway. the plan has always been to fit aluminum heads later so why not do it once.
neil.
Title: Re: speedmaster aluminum heads and roller rockers
Post by: blykins on April 14, 2026, 10:20:32 AM
I'll be straight with you, dude.

The SpeedMaster/ProComp/et al is junk.  And yes, it's cheap Chinese junk, just like the lifters you bought. 

I don't use their stuff, but have seen plenty of it fail:  heads can't pass a pressure test, seats need valve job, guides fall out, roller rocker arms spit out needle bearings, distributors fail.

It's cheap for a reason.  You play the game, roll the dice, and see if it works for you.
Title: Re: speedmaster aluminum heads and roller rockers
Post by: pbf777 on April 14, 2026, 10:50:46 AM
The SpeedMaster/ProComp/et all is junk.

     +1   :)

     Scott.
Title: Re: speedmaster aluminum heads and roller rockers
Post by: blykins on April 14, 2026, 11:25:14 AM
They literally copied/stole ideas/designs from hard-working companies, such as Edelbrock, MSD, CHI, Parker, etc., then produced them very poorly.

That is their MO.  They can go play in traffic.
Title: Re: speedmaster aluminum heads and roller rockers
Post by: My427stang on April 14, 2026, 11:33:38 AM
I'll be straight with you, dude.

The SpeedMaster/ProComp/et al is junk.  And yes, it's cheap Chinese junk, just like the lifters you bought. 

I don't use their stuff, but have seen plenty of it fail:  heads can't pass a pressure test, seats need valve job, guides fall out, roller rocker arms spit out needle bearings, distributors fail.

It's cheap for a reason.  You play the game, roll the dice, and see if it works for you.

and another "I agree"

Had a set of their SBF heads come through here last week, sent them on their way.  Absolute crap

Their rockers are known to have body and adjuster failures, also crap

Of note, the guys who are all responding build LOTS of engines.  Take free advice for what you paid for it, but we know junk and avoid it. 
Title: Re: speedmaster aluminum heads and roller rockers
Post by: blykins on April 14, 2026, 11:50:34 AM
If you're trying to be frugal, find someone with a set of Edelbrocks that they're selling to upgrade to something else.   

You don't need roller rockers.  I've got engines out there with hundreds of passes on them running factory non-adjustable and factory adjustable rockers, with end stands added. 
Title: Re: speedmaster aluminum heads and roller rockers
Post by: mygasser on April 15, 2026, 08:01:59 AM
thanks for the advice everyone  ;D
i'll pass on them then.
neil.