Limits of standard bolt a-460 combo

Just thought i would share info, we ran great at SCSN5 this weekend. We leaned on car harder than ever and found out hard it is to hook up on drag radails with a 533 and alot of boost.
Well i have the standard A 460heads and block not the 18 bolt stuff/ wish i did. We ran 19-22 lbs threw qualifing 7.7-7.60 times at 183-4, At 24 lbs it started to push a little water out over flow, On kill, i don't car i want to win tune , 26lbs the mls head gaskets finaly gave up. So thought i would share, high teens to low 20's on boost with good gaskets and studs is do able, but mid to high 20's save up for the 18 bolt stuff, sure with i did.
On a side note the scat forged crank and rods lived threw all passes, i will tear down and inspect this winter. Think i'm going to put in aluminum rods. The trick flow rockers and stud girdles i got from lem also held up. This is probable the lowest buck 1700-1800 horse engine you can build, i will keep posted oin its servival rate.
Best passes at 3455lbs on radails
60 ft 1.26
330 3.18
1/8 5.01 147 mph
1/4 7.62 184

later wally

My exp. with high boost and head gaskets was the mls can't take multiple passes and hold, I switched to the ICS Titan copper with the seal around the water ports and have never had a failure since. I tried Milodons copper gaskets too, they hold the boost but tend to leak water. So far I haven't found anything better than the ICS product. Sounds like a mighty awesome motor you got, would love to hear it run. Good luck!

Wally,
I would love to hear more specifics on your car and engine. Let's see some pics too!

http://www.quartermiledesigns.com/coppermine/albums/pics/2009%20Races/SCSN%20-%20Vegas/sunday/sunday_%28173%29.jpg
533 a-460 block, trick flow a-460 heads exhaust porting only, stock valves, manley nextec double springs, 720 lift cam, diamond pistons, scat crank and rods, trick flow tunnel ram lower box upper, 160 lb injectors, 105 tb accell dfi, aeromotive pro electric pump and reg, chance converter with p/g, 3.20 gears
i will link a video
later wally

Thanks to scott at RHP built motor and ported heads. Will have full port done over winter

https://www.youtube.com/watch?v=29V3LfdegSU

Thanks for posting your set-up and results.
Cool you tube video. Was that the Larson Chevy II/ Nova in the other lane ?

Thanks a lot for posting those specs. Truly awesome running machine. You're only running one turbo? What size is it?

Thanks again,
Joe

Garret gt 60 106 with a 1.50 exhaust housing, revv to 73-400 range

Wow, does that thing ever haul!!! Thanks for posting!!

Awesome car.

Bill

Hey Wally, thanks for the video... That thing's haulin' fer sure...








Doug...

Well got motor out and topp end off, was pushing a little water by 2/3 from cyl to water port/ and blew a very small spot on cyl 8 straight to water port, very small fire slot from outside ring to port should be very easy repair. All the worring i do about shaft valve train, when i took it apart all valve stems look perfect and all valves still in adjustment. So when lem and the boys say Jamor stud girdles work, beleive them i still am in aww. I hope to take apart bottom end tonight and look at bearings then make my call on what changes to make. I think i want to put all the new valve sping package that came on heads back on, repair them and sell them. they are the 2.35 valve heads. Let you guys know what the bottom looks like soon.
later wally

thanks for the info and great car

Nice  

blown473 wrote:My exp. with high boost and head gaskets was the MLS can't take multiple passes and hold, I switched to the ICS Titan copper with the seal around the water ports and have never had a failure since. I tried Milodons copper gaskets too, they hold the boost but tend to leak water. So far I haven't found anything better than the ICS product.

I know Van has managed 6.60's at 220 mph in the quarter with TFS A-460 10-Bolt heads without problems. 12-71 blower but I don't know how much boost.  Yes, copper head gaskets, but water was not run in the block so I don't konw what to say about seepage. The block was o-ringed.

Paul

Any updates?