Outer Limits 4x4 Board

For the Chevy gurus,

Which Chevy engine block is the strongest ?

The 2 bolt mains or the 4 bolt mains ?

& why ???

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

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

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

What he said.

Tom

4 bolt marine block,

they say by 30%

MKPatrolGuy wrote: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?

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.

Dozoor wrote: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 ..

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.

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.

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

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.

Cheezy4x4 wrote: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

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

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.

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

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

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.

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.

ya gonna V8 ya rig aye kev?

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 ?

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!

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

excellent ... many guys coming down from cairns?

Dont know about Mike & Gordy but Jons keen.

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

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.