SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: freshmeat on October 03, 2014, 07:41:54 PM

Title: what 427 BBC is this, have block numbers
Post by: freshmeat on October 03, 2014, 07:41:54 PM: I may have found a 427 to buy, can you fellas help me identify what 427 this is. Here are the numbers I got off the block.
Back of block numbers are 3916323
Front of block are two sets of numbers on passenger side of block, here they are. T1017ED and then 18K124384
On the back of the block it also says HI-Perf Truck Pass.
Title: Re: what 427 BBC is this, have block numbers
Post by: freshmeat on October 03, 2014, 07:51:28 PM: Just ran some numbers, its not a 427 its a 396. The guy wanting to sell it tells me its a 427 but he wasn't sure.
Title: Re: what 427 BBC is this, have block numbers
Post by: 86caribbean on October 03, 2014, 08:01:19 PM: Looking at the block casting numbers givin, that block is in fact a 1968 396 2-bolt main, perhaps this block was used in a truck application too. There is actually no difference in a 427 and a 454 block, both bores are 4.250, that 396 factory bore dia. is 4.094. If your wanting to build a nice boat engine on a fair budget, try and find yourself a nice OEM 4 bolt 454 block, cut it .030 or .060, a nice GM steel crank will do fine too, or a nice aftermarket 4340 is nice also. GM 3/8 steel rods with ARP bolts and a set of forged pistons will also do fine. Everything depends on how much power you want to make and how fat your wallet is...LOL
Title: Re: what 427 BBC is this, have block numbers
Post by: beerjet on October 03, 2014, 08:40:03 PM: I for the life of me can't wrap my head around why people always dismiss the 2 bolt main 454 blocks....
On the other hand, if ANYONE finds a good 454 2 bolt block, send it my way!

-beerjet-
Title: Re: what 427 BBC is this, have block numbers
Post by: 76 Bonneville on October 03, 2014, 08:58:30 PM: I agree with you Omar. For a mild build there's nothing wrong with a 2 bolt block. I've been told 600hp would be fine, but then again i have three 4 bolt blocks for future builds. Haha
Title: Re: what 427 BBC is this, have block numbers
Post by: GT Jets on October 03, 2014, 08:59:42 PM: Quote from: beerjet on October 03, 2014, 08:40:03 PM
I for the life of me can't wrap my head around why people always dismiss the 2 bolt main 454 blocks....
On the other hand, if ANYONE finds a good 454 2 bolt block, send it my way!

-beerjet-

Tell me about it. The two bolt block is actually stronger than a four bolt. I have done the splayed conversions and believe them to be superior in strength to the four bolt. Never seen a two bolt block fail. Nor has anyone else that I know. That being said, they must be studded to be fool proof.

GT

Sent from my SCH-I545 using SoCal Jet Boats mobile app
Title: Re: what 427 BBC is this, have block numbers
Post by: freshmeat on October 03, 2014, 09:06:54 PM: The 454 that I have now in my sleek is a 2 bolt main. Seems to run perfect.
Title: Re: what 427 BBC is this, have block numbers
Post by: Just Electric on October 03, 2014, 09:12:38 PM: Quote from: beerjet on October 03, 2014, 08:40:03 PM
I for the life of me can't wrap my head around why people always dismiss the 2 bolt main 454 blocks....
On the other hand, if ANYONE finds a good 454 2 bolt block, send it my way!

-beerjet-
inlike your style

Sent from my dirty butthole
Title: Re: what 427 BBC is this, have block numbers
Post by: capogniracing on October 03, 2014, 09:44:46 PM: Quote from: beerjet on October 03, 2014, 08:40:03 PM
I for the life of me can't wrap my head around why people always dismiss the 2 bolt main 454 blocks....
On the other hand, if ANYONE finds a good 454 2 bolt block, send it my way!

-beerjet-
I have 2 if you really need one.
Title: Re: what 427 BBC is this, have block numbers
Post by: beerjet on October 03, 2014, 09:45:59 PM: Quote from: capogniracing on October 03, 2014, 09:44:46 PM
I have 2 if you really need one.
"Need" ....
No.

-beerjet-
Title: Re: what 427 BBC is this, have block numbers
Post by: capogniracing on October 03, 2014, 09:57:03 PM: Quote from: beerjet on October 03, 2014, 09:45:59 PM
"Need" ....
No.

-beerjet-
lol I know what your talking about lol.
Title: Re: what 427 BBC is this, have block numbers
Post by: beerjet on October 03, 2014, 09:58:06 PM: Quote from: capogniracing on October 03, 2014, 09:57:03 PM
lol I know what your talking about lol.
Let me know when they're headed to the scrap yard....or a price would be cool too.

-beerjet-
Title: Re: what 427 BBC is this, have block numbers
Post by: capogniracing on October 04, 2014, 08:16:01 AM: Quote from: beerjet on October 03, 2014, 09:58:06 PM
Let me know when they're headed to the scrap yard....or a price would be cool too.

-beerjet-
Sent you a text