[69camaro434]

How much HP can a GM Bowtie block take?
Are they as good as a Dart block?

 

[trmnatr]

Which one???

 

[69camaro434]

Is there a website I can look up the bowtie numbers for block, heads & intake.

 

[haddixj]

just google the casting numbers usually something will show up. Team chevelle I found had a listing for them

 

[cgeise]

no - dart is better

 

[RCM Racing engines]

Gm bowtie blocks ARE pretty damn good,... I have seen them take alot of shit.......1200 hp and 8500 rpm

Both together

 

[Mike Beck]

I have an old GM Bowtie SBC. Don't like the rear main seal adapter deal, but thankfully it has not leaked! Made over 750 passes on the stock bore. Recently honed it .005 over for new slugs. No complaints here at all. Pushing between 600hp and 950hp, depending on N2O or not.

 

[69camaro434]

I have an old GM Bowtie SBC. Don't like the rear main seal adapter deal, but thankfully it has not leaked! Made over 750 passes on the stock bore. Recently honed it .005 over for new slugs. No complaints here at all. Pushing between 600hp and 950hp, depending on N2O or not.

What casting number is yours?
I am going to look at an bowtie engine & wanted to know which bowtie blocks are the strongest.

 

[Monte442]

If it has the seal adapter it is probably the 184 casting.

 

[69camaro434]

I'm hoping the bowtie block I check out is a #24502503 block.
The 184 doesn't have splayed mains.

 

[plasticracer]

the full casting number is 10051184 ...part number for block with splayed billet caps 24502503 in the gm performance book rated at 700

 

[plasticracer]

there are 7 part numbers listed for the 1184 block only the 503 block has splayed steel caps the rest are splayed nodular

 

[69camaro434]

The bowtie engine I am going to look at puts out around 800hp & in the future if I add 100 or 200hp. I'm up to 1000hp.
Is there a bowtie block that can handle this much power?

 

[plasticracer]

that block will handle that kind of power easily....gm rates conservatively....

 

[Mike Beck]

I am pretty sure my block is splayed. Gonna look at the part number later.

 

[69camaro434]

Leaving early in the morning to check out the bowtie engine, just want to make sure it is splayed mains.
The block is about 10yrs old, don't know if they changed casting number back then to now?

 

[steel town]

I'm hoping the bowtie block I check out is a #24502503 block.
The 184 doesn't have splayed mains.

Hey Greg my 184 block has splayed mains .Great block no concerns here

 

[plasticracer]

good luck greg

 

[69camaro434]

Hey Greg my 184 block has splayed mains .Great block no concerns here

How much hp is it good up to?

 

[Horndog]

Hey Greg my 184 block has splayed mains .Great block no concerns here

Same here !!
184 block, all five mains have four bolts, the center three caps are splayed.