ProComp/Speedmaster aluminum heads
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j par
Well-hung Member
I was thinking maybe that could be it, but would have never truly known.
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I got a BB set and realized that I got angled plugs. I probably wont be able to use the same headers? The boxes were trashed, but I could only find one little dinger. It was on the edge of one of the combustion chambers. I think I may have to have a shop really check them. Ive been working nights and dont know enough to know what to look for......nothing obvious at this point.
I have seen that angled plugs promote problems, will I have to run different headers? I have TTI 1 3/4''
Thanks!
I have seen that angled plugs promote problems, will I have to run different headers? I have TTI 1 3/4''
Thanks!
Bobzilla
Well-Known Member
What part number cylinder heads did you get? Do they also require offset rocker arms? Post a couple pictures.
cookietruck
Well-Known Member
yeah, the BB speedmaster heads (that are available) are the copies of the Edelbrock Victor heads. You need offset rockers arms for them and they have that big raised pad on the intake side so that a factory type intake will fit. Small heart shaped combustion chambers..they all have angled plugs.
this is probably the hot deal for straight plug heads, seems this is a mopar performance head.
Performer RPM Cylinder Head
So this is per head price ya?
And so i need offset rockers and different headers?
Sonafa
My new valve seat cutters have arrived. Now all I have to do is get off my lazy butt and hit the shop.
PRH
Well-Known Member
The “affordable” BB heads that have straight plugs are Stealths, and the 84cc E-Street.
In the past, SM has had the RPM style head in both straight or angled plug versions...... but I haven’t seen them on their site in a couple of years.
The pic posted above looks like the Victor style head.
Those take a few special parts to be able to run them.
In the past, SM has had the RPM style head in both straight or angled plug versions...... but I haven’t seen them on their site in a couple of years.
The pic posted above looks like the Victor style head.
Those take a few special parts to be able to run them.
roadrunninMark
Well-Known Member
Just reading this post. Why do you order the valves at +050? Is it better to order the heads complete and swap out the springs one has with a cam kit instead of ordering all separate?
Looks like I will have to wait until black Friday 2021 for the next sale.....
Looks like I will have to wait until black Friday 2021 for the next sale.....
That’s the size Speedmaster sells and installs in their heads. Kim
roadrunninMark
Well-Known Member
What size push rods are needed for these heads (SB)? I saw they recommend the hardened set. I was looking to order there stainless rocker arm set as well.
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Harden pushrods are not needed. That spec on their website is incorrect. I use 5/16 .083 wall...but i am sure 11/32 or even 3/8 could be use. As I have used 3/8 on eddy heads dont see why they would not fit the SM heads.
Pushrods used would depend on cam used. To get everything right it’s never a fits all as you may need a thicker pushrod, longer, or even shorter. Sometimes clearance issues happen when different ratio rockers are used so it’s nice to get everything right while it’s on an engine stand. Then there’s always rocker geometry to get right.
roadrunninMark
Well-Known Member
I will be using a hydraulic roller, a retro roller setup from Lunati. What push rods would you recommend?
j par
Well-hung Member
I would recommend Smith Brothers. Have them send you a measuring push rod to see what size you need and you send it back to them and they send you 16...
Ferry
Active Member
Are there still people waiting for their Black friday order? I bought the bare heads with cnc to replace the j heads on a 416, but it looks like i have to drive those j heads for another summer
j par
Well-hung Member
They would be getting a call at 8am daily...Are there still people waiting for their Black friday order? I bought the bare heads with cnc to replace the j heads on a 416, but it looks like i have to drive those j heads for another summer
I got my heads pretty quickly. Still waiting on my rocker arms. I need to call them today.Are there still people waiting for their Black friday order? I bought the bare heads with cnc to replace the j heads on a 416, but it looks like i have to drive those j heads for another summer
Well... still haven’t received my rocker arms and they’re still out of stock. Tried calling Speedmaster yesterday and coined the get through to anyone. Need to try again.
*EDIT* just got off the phone with Speedway and they haven’t received info from their supplier when the roached shafts will be available. She’s going to reach out to the supplier and see if she can get an eta and get back to me.
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Franklin Crisp
Member
Hey Guys, I've got a set of Speedmaster heads on my 360 1972' block.. obviously non roller block, everything pretty well bolted up without issues even alternator... I did have comp cam springs installed/and the retainers to but I used the Speedmaster valves.. I noticed the valves are lil bit lighter than what I'm used to feeling but heads are fine according to Fast Teck Machine shop in Ocala.. i only have about 100 miles now but doing great! I did use Speedmaster head stud kit with only 70lbs of Torque according to Speedmaster Torque spec is just 65lbs.. so anyway they seem great in my truck..its not a race truck it's street drivin and feelin like I'll probably order another set of Speedmasters for a 71' 340 I'm doin... so far I'm happy... Nice heads!
Bobzilla
Well-Known Member
Feel free to post some pictures. We like pictures.
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