RHS block 461 LS engine build thread - now built, dyno tomorrow

[The WidowMaker]

are you going to sell me the 454 at your normal insanely low prices. no shipping needed!!!

[LSx_88_Ciera]

Must be nice to have the resources to change the engines instead of the oil. Do you have special stickers you place in the corner of the windshield so you know when it is time for a *SERVICE*?
Curious is it a typing or math error 4.155 x 4.125 is 447cid not 461.

[Steve1968LS2]

Must be nice to have the resources to change the engines instead of the oil. Do you have special stickers you place in the corner of the windshield so you know when it is time for a *SERVICE*?
Curious is it a typing or math error 4.155 x 4.125 is 447cid not 461.

Typing error.. 4.155 x 4.250



I do have resources, but I try to use them for good not evil. It just so happens my job is to turn out tech and sometimes that's engines. :shrug:

This sort of came up and changed my plans for a final engine.

I had the LS2.. then I had a oil pump fail so I rebuilt it.. then I stroked it to a 402 (same engine) then I built the 454 which is now going to be a 461

So in reality that's only three engines when I planned for two.

[Steve1968LS2]

are you going to sell me the 454 at your normal insanely low prices. no shipping needed!!!

That was shuffled over to Pozzi Racing for use in David Pozzi's '67 Camaro.

He had my 402 and now that is going into Mary Pozzi's second gen. They get most of my old parts.. least I can do considering all the help he has been (and Mary for teaching me cuss properly behind the wheel.)

[rickk]

steve you did good.
rick k

[LSx_88_Ciera]

Steve
I knew all of that just felt like giving you a hard time because I am jealous. Is Camaro Performers looking for a freelance writer I'm pretty technical and diligent.

[Steve1968LS2]

Steve
I knew all of that just felt like giving you a hard time because I am jealous. Is Camaro Performers looking for a freelance writer I'm pretty technical and diligent.

Can you take a good picture? Always looking for fresh meat.. I mean new tallent! lol

And I know you would just messin with me.. but I do get "hate mail" believe it or not...

I'm pretty lucky that my job and my hobby are the same.. and I know it. I also know that I own having my job to this website and to the pro-touring community. Won't ever forget that.

[theRG]

Who in So. Cal usually does your engine machine work? I'm moving out there in 6-9 months and trying to get a good shop database together.

[RSX302]

Well.. I'm tired of swapping engines.. gets old. lol

RHS short deck block - 4.155 bore
Mast Motorsports 12-degree LS7 bad ass heads
Lunati Pro Crank - 4.125 stroke
Lunati Pro I-beam rods - 6.125"
ARP everything
FAST 102mm LS3 style intake
CHE bushed LS7 rockers
COMP vertical bar lifters, pushrods, timing chain, etc
Moroso oil pump

We have two camshafts to try.. one is really snotty.. both are hyd.

The smaller is a just a touch bigger than the one in my 454.. the other is.. well.. bigger

Thought it would be fun to see the power differences.

Displacement is 461 cubes.. With the big cam we should be over 700.. no idea on torque but more than I need.

I will say the finish work on this RHS block is pretty damn impressive

Sweet!

I'll have to tell my my buddy Charlie (CHE) that you will be using his rocker bushings/trunnions... If you ever want a tour of his shop let me know when you're in the area. They also have a nice set of Ti retainers. My Ford R302 has many of their parts.

[PremierJosh]

With the rough same size camshaft as in your trickflow headed motor this ls3 style headed motor will make quite a bit more top end with a little loss in tq down low even with the slight extra cubes. I also doubt you will notice the missing tq. This is unless you are also changing something like compression with this build. She looks great.

[Steve1968LS2]

Here's a look inside.. what caught my attention was the provisions for oil squirters.

The sad news is that they won't be out in time for me to use... but it's nice to know they are on the way. There are four ports and each port will support two emmiters.



Opened up the Mast Motorsports "black lable" heads today and they are beautiful..

LS3 12 Degree 4.125 - 4.200 Large Bore CNC 6-Bolt
Solid Steel Race Valves 2.200 Intake
Solid Steel Race Valves 1.060 Exhaust
GM OEM LS7 Rocker Stands
Dual Premium Nitrided
Ti Dual Spring Retainer
Steel Dual Spring Locator
Machined Steel 7 Degree



Lunati Pro crank with 4.250 stroke

[srh3trinity]

You may have to call Penny done after this. I can't fathom how you could possibly improve on this upgrade (well at least in the engine department)

[Steve1968LS2]

RHS just sent this over. Shows how the piston squirters will work with just four ports.

[Motown 454]

Amazing engine your building Steve. I'll have to take another trip Cali to see Penny uh I mean my daughter..

[The WidowMaker]

I'll have to take another trip Cali to see Penny uh I mean my daughter..

im naming my daughter penny so i never have that issue.

[LSXZ28]

Nice lookin pieces! That should get the job done for sure!

[78 Type-LT]

Beautiful parts

[Rybar]

Hey Steve, the engine is looking awesome. Do you know if ET Performance still makes the RHS 11 degree heads? Why didn't you go with a set of thier heads on this motor?

[CarlC]

You've got to get the squirters. Think long-term reliability.....

[Steve1968LS2]

You've got to get the squirters. Think long-term reliability.....

I wish.. I might call RHS and ask about my chances of getting prototypes in two week. I could prep the block now and add them after the dyno and before the install..

But I have a feeling that's just a pipe dream.. more than likely I will have to add them in a year when I do a maint tear down/rebuild or something.

Spent time on the phone with Penske today.. looks like we will be running 8300s..