Official boss block build

[Dillon Dollar]

Jp08gt what power adder were you using

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[JPO8GT]

All Arp hardware and you'll be good i jumped in earlier not realizing you we're going 1000+ to tire. If you already have Arp head studs you can reuse them I think they make a arp main kit that works with the block that includes 2 studs per main instead of 4 it's cheaper and the arp side bolts arnt priced high hell the damn head studs are the most expensive part.

 

[Dillon Dollar]

Yeah I have all the arp head studs and side bolts I just hadn't bought the mains yet

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[JPO8GT]

Jp08gt what power adder were you using

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Paxton Novi 2200 22psi boost spinning 7300 rpm max

 

[Dillon Dollar]

Did you have the blower turned All the way up? How was your tq curve

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[JPO8GT]

I was auto trans @ 9.5 CR & yes the blower was turned all the way up 8 rib
Turbo with 10.5:1 your gonna be happy!
Are you auto trans or manual?
Woops forgot you ask about tq curve the tq was there but it came in latter peak tq was in 5000's rpm i came from a PD blower to Paxton on the track the Paxton was faster but from a roll on street the PD was better more responsive.
Turbos setup right are pretty responsive Im going turbo on the new car.

 

[BruceH]

The block comes with the same main cap and bolt arrangement as an iron block GT500 does.

Is your Eagle crank forged or cast? How far has anyone pushed one? I wonder what affect the smaller Honda journals have on overall strength? If you haven't started the build yet you might want to research it prior to starting the machining.

 

[Dillon Dollar]

Unfortunately I'm a manual transmission

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[Dillon Dollar]

The crank is forged and from all the research I've done the eagle stuff will hold around 1200 to 1400 if I'm correct Kellogg no longer sales rotating assemblies and eagle is the only option unless you buy one off the shelf

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[Dillon Dollar]

Ttt

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[JPO8GT]

I think the Eagle stuff should be ok.
I am speaking from push rod experience Eagle is very strong stuff.
One thing to consider is if your going to be beating the crap out of the car at track alot or mostly street use. Im not sure about the Honda journal thing but there's Hondas with turbos making huge power.
Eagle never has won popularity in 3 valve modular motors but that doesn't mean there bad. And I'm sure if you researched enough you would find some early 4 valve cobras and built 2 valves with turbos making the power your after with Eagle internals. The 4.6 shortblock hasn't changed much over the years the Boss block will work with 2,4 & 3 valve heads.
Unless there is evidence Eagle is a bad product I'd use the eagle stuff and have them do a line hone and she should be smooth as butter.

 

[Dillon Dollar]

Yeah I've seen some one make over 1200 to the tire with eagle stuff. I think frpp uses eagle now in the aluminator engines. The only thing I feel insecure about is the main caps because some people say you need billet mains and others say you don't need them.

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[JPO8GT]

Trust me the main caps screwed with me too but i researched it and if you drill the existing caps it's weeker and the only way done right is to do billet RGR caps but the block has to be machined properly to accept the Billet caps. I personally wouldn't trust someone to modify that block unless they had 1 done it before on the same block 2 it was successful.
Rgr is the only one i know proven on converting the Boss block to 6 bolt main then make stupid power and it live.
To bad there is never a guarantee something wont break damn if it was mine I'd want it bullet proof but im not sure that bullet proof totally exist in this hobby.

 

[Dillon Dollar]

Lol I completely agree. I'm going to turn the turbo's up All the way and see what it makes. Hopefully I won't shit the crank out of the bottom lol

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[Dillon Dollar]

Anyone know where I can find the main stud kit for the frpp boss block

 

[JPO8GT]

Got mine @ Summit Racing

 

[Dillon Dollar]

Just priced them I was surprised how cheap they were

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[BruceH]

Just priced them I was surprised how cheap they were

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It only has about half of the studs that a 3v has.

 

[Dillon Dollar]

Lol yeah I completely forgot

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[Bobby]

I used the ones i used on my 03-04 cobra block in the motor i had in the car first.