View Full Version : my heads wont bolt to the block HELP!!
sandmanjoe
08-25-2007, 08:58 AM
unsure if this section is for ONLY pontiac race engines, but i have a major issue with this race boat engine,, its a 4bolt 350 1 piece seal block and i have these aluminum patriot heads,,, i started bolting them down this morning and all the bolts fit but the one on the end,,, there is NO hole!!
what the hell is going on!!
these are the heads, http://www.patriot-performance.com/waterNew/default.asp?x=1&DID=1225
i hope this mistake wont cost me 1000.00 dollars,
http://img291.imageshack.us/img291/4273/dscf0602vs9.jpg
Jeff Walker
08-25-2007, 09:14 AM
It's an oil drainback hole. HTH
sandmanjoe
08-25-2007, 09:21 AM
hahahaha,,, god im a dumbass,,, i guess i should have counted my bolts... :o :o :o
PONTIAC DUDE
08-25-2007, 09:47 AM
Ahhhhhhhhhhhh. Chinese heads. LOL. Had some of those. rough castings.
sandmanjoe
08-25-2007, 09:58 AM
these are made in Alabama,, or so the guy said,,,, i was told they CNC these out after the order is placed. it took around 2weeks to get them. im also adding a 2in spacer on top of that hurricane intake lol
Skip Fix
08-25-2007, 12:05 PM
Wonder why the SBC don't have oil drain back issues the Pontiac aftermarket heads are supposed to? Even the factory SBC heads have little drain holes.
455Grandville
08-25-2007, 01:54 PM
Skip - stroking a 409 ? Im guessing your doing some mods to a '54 crank to do that ?
tikiklubracing
08-25-2007, 05:51 PM
Is that an Allen wrench sticking out of the water crossover access hole, or what. Just curious?????????
Hate to lose that down in there.
Skip Fix
08-26-2007, 09:58 AM
Stroking a 409 is as easy as using a 3.76 396/427 crank pr a 4.0 454 crank and turnino the mains and counterweights down(and snout to SBC size) 409s had a 4.3125 bore and a 3.5 stroke originally. Get a 470 ci motor pretty easily. Down side even the good heads only flow around 250-270 cfm, hard to feed them just like our Ponchos.
Brian Baker
08-26-2007, 05:13 PM
I'm starting a pool on how long it'll take for that side to blow a head gasket...any takers?
sandmanjoe
08-26-2007, 05:31 PM
yes its an allen... there is no gaskets under anything on that motor,,, im just sitting all the parts on and putting all the bolts in the holes. its just on for looks right now. lol
sandmanjoe
08-26-2007, 05:38 PM
hey,,, do you guys use loctite on those allen set screws on the rockers??
Jeff Walker
08-26-2007, 06:52 PM
I'm starting a pool on how long it'll take for that side to blow a head gasket...any takers?
Why do you think it will blow a head gasket just on that side????
Brian Baker
08-26-2007, 10:55 PM
Why do you think it will blow a head gasket just on that side????
Two reasons:
1.) I had assumed he already had the bolts (save for one) torqued down.
2.) Everything else he's worked on has some degree of "afro-engineering" in it.;)
Brian Baker
08-26-2007, 10:58 PM
hey,,, do you guys use loctite on those allen set screws on the rockers??
No, absolutely not. Once you determine where you are going to have your final adjustment on the rocker nut, back it off 1/8" turn, then lightly bottom out the set screw against the top of the stud, then turn both the set screw AND the rocker nut the final 1/8" turn together. If you tighten the set screw AFTER you adjust the rocker nut to the desired position, it will eventually back off and you'll lose the set.
sandmanjoe
08-26-2007, 11:46 PM
got it,, glad i asked that question,, they came with no instructions and its my first time bolting rollers on an engine.
anything different i should do when bolting the aluminum heads to the cast block? im guessing i should re torque them a few times after running it. . thanks again!
455Grandville
08-27-2007, 12:29 AM
Why would you want aluminum heads on a boat engine ? Unless its a closed cooling system.
sandmanjoe
08-27-2007, 11:22 PM
its a closed cooling system,, this boat is heading to Deep Creek Lake in 1 month!!
heres some more pictures i took today with the 2in spacer and kick out oil pan
http://img212.imageshack.us/img212/1584/dscf0606wn5.jpg
http://img212.imageshack.us/img212/7753/dscf0603kz2.jpg
sandmanjoe
08-27-2007, 11:30 PM
the carb is going to sit 15in from the deck
the cam is----- lift .490/.490 dur 300/308
Jack Gifford
08-28-2007, 03:10 AM
Oops... sorry... I must have taken a wrong turn... I was looking for the "Pontiac Race" forum. 'Bye- have a nice day!
Brian Baker
08-28-2007, 07:53 AM
Jack's funny...and right.
Ahhhhhh, Deep Creek Lake. Boating season will be over in a month up there. You know someone with a place up there? My Aunt has a vacation home there, right on the lake, about 7 miles south of Wisp. My wife and I love it there, but it has changed alot in the last 20 years.
sandmanjoe
08-28-2007, 09:03 AM
yes,, we rent a place right on the water with a floating dock, right down the creek from the boat gas station. 20 years ago the place was empty except for a few hunters and fisherman,,,, now its getting almost like ocean city..,,, well maybe not that bad lol
bryany
08-28-2007, 09:31 AM
I really expected to see the heads on backwards...
Brian Baker
08-28-2007, 11:15 AM
I started going there in 1980. Back then, the only chain restaurant in the entire county was a Pizza Hut in Oakland (still there). Walt's General Store in McHenry (across from where the post office used to be on old 219) was the only store unless you drove to Oakland. They didn't even have a movie theatre. Walt's is long gone, having been torn down and condo's built on top of it, and they have McD's, a theatre, at least 3 different supermarkets (including a super WalMart!) and more and more foreigner's. I was walking through the woods from the Muddy Creek Falls heading back to the parking lot when I was passed by an entire delegation from India, and thought "there goes the neighborhood".