Chevy blocks.

[Kev80]

For the Chevy gurus,

Which Chevy engine block is the strongest ?

The 2 bolt mains or the 4 bolt mains ?

& why ???

[hotrod4x4]

4 bolt mains and an 010 block......010 is a casting on the side towards the rear
010 blocks r slightly better metal from memory
and 4 bolt is just plain stronger.....holds the caps better obviously

[MKPatrolGuy]

A 2 bolt block, but drilled for splayed 4 bolt caps.

[Daisy]

A 2 bolt block, but drilled for splayed 4 bolt caps.

What he said.

Tom

[planb]

4 bolt marine block,

they say by 30%

[CRUSHU]

A 2 bolt block, but drilled for splayed 4 bolt caps.

why is a 2 bolt block stronger? i thought the 010 block was stronger as well. or is because of the splayed caps?

[Dozoor]

Could be an old wives tale but , I remember reading some where That the early 2s where better iron , Factory went to 4 s after the mix was changed to keep the reliability up . But like i said probly frog shit.
Larry.

[Guy]

Could be an old wives tale but , I remember reading some where That the early 2s where better iron , Factory went to 4 s after the mix was changed to keep the reliability up . But like i said probly frog shit.
Larry.

I have heard the exact same thing .. Think it was a 3 or 4% higer nickel content in the early blocks ..

[Kev80]

Well what iv heard is that the 4 bolt mains is not as strong because the extra holes drilled into the block can structualy weaken it.

I recon it would take a massive amount of horsepower to determine if this is true or not.

[Cheezy4x4]

2 Bolt 010 is stronger, I have been using them for years running big HP when I was drag racing. The main webbing in the old 2 bolt 010 blocks are thicker than the 4 bolters. The 4 bolters tend too crack between the threads, so I always get the 010 2 bolters and drill and tap 4 bolt steel splayed caps onto then. this is only needed if spinning over 6500 rpm.

[MissDrew]

Which he does often, its a bit like him rolling really

[Cheezy4x4]

And that would be twice in 15 years, ( they are the ones that you know of anyway).
BTW, I have tonnes of DOM ATM, so how about it Roll Lux, boarder riding Hmm.

[MissDrew]

BTW, I have tonnes of DOM ATM, so how about it Roll Lux, boarder riding Hmm.

Sorry mate but I`m not into Dumb Obese Men like you

[davejb]

The new Merlin aftermarket block are suppost to be real strong. If you are going to spend a fair amount of money prepping the block dont waste it on a factory block. There is better available now. Friend built a 420 ci small block recently and these became available just after he finished it, he was very pissed

Dave

[Cheezy4x4]

Just got my after market SBC block for my new rig, but $2800 for a block may be a bit much, but it will be stroked to 427 ci and will be strong enough for the 2 turbo's going onto it.

[MissDrew]

What you think you got enough to strock it 427 times and with 2 turboes

[luxute]

We found that the 2 bolt block with 4 bolt splayed caps stronger than 4 bolt 010. Was in sprint car, produced 600hp, spun to 7500rpm

[Dozoor]

Kev , There are some other issues that I have witnessed , x2
dudes had brought small bricks to biuld up in the non going form ,
Once one had biult his it developed a cooling prob That we couldn,t right.
after all the steam had cleared it turned out to be a pooress block.
This apprentice Poored a shid load of bucks into prep, only to find this as the outcome , The other one was a simaler scenario only lesser and managed to cure the prob with some of that magic in a can chemi weld.
Not exactly the sort of thing id be happy with pooring rubbish into my newley biult lump....
Larry.

[Kev80]

7000 rpm isnt bad for a V8 but did you know these F1 cars racing in Melbourne at the moment rev to 19,000 RPM for the entire race.

Thats more than my old 2-stroke moto-x bike.

[Hoonz]

ya gonna V8 ya rig aye kev?

[Kev80]

Nope, but i do have a 350 Chev in my ski boat though.

Hey Luke, hows ya 35's going ?
You entering the ASCC this month ?

[Hoonz]

yep i will be at tsv ASCC competing
i was sposed to go to bris this weekend to go .. but no one to drive down with .. wasn't gonna do it all on my own
and 35s + gears = don't have to used airlockers most of the time
it rocks! MTRS ARE GREAT!

[Kev80]

Cool.
We are heading down fri after work & stay the 2 nights, be good to catch up with the lads.

[Hoonz]

excellent ... many guys coming down from cairns?

[Kev80]

Dont know about Mike & Gordy but Jons keen.

[ORSM45]

ey cheezy what sorta block is that? is it a keith black?

im guessing its a 400cu inch bore? with a massive stroke.

where did you get your crank for your shorty?

i finished running in my stroker and it sits on 160km/h nicely now. got lotsa thumbs up from people i was passing.

MaccA

[Cheezy4x4]

The block is a World Products Merlin 11, and starts life as a 350, the crank is made here in Melbourne and is a custom forged and the pistons are vanolia made to our specs, being around 8.5 to 1 comp for the turbos.
The motor in the Mav ATM is a 350 010 2 bolter converted to 4 bolt splayed caps, custom crank also with vanolia pistons to our specs, around 10 to 1 comp.