Thread: blown slantsix

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thanks pat seems the holding tool is anywere from $84 to $119, i will have to contact the local machine shop here and put that idea to him

hello all. I was just reading the posts and this caught my eye, I talked to a guy some time back and he stated that he had a like problem. he then told me that he took a small punch and hammer and dimpled the block and the head so that the gasket would not move under boost, I never seen the engine but he swore that it did the trick, wonder how long it lasted? maybe someone else has more info. GOOD LUCK dave

do you know if he was using a steel or composite head gasket?

hi, no I don't remember if he was using steel or not, for the gasket'. makes sence to a point, I don't know if I would take the chance to find out with out checking alot more

I have the ISKY tool and use just a block groove with out any receiver groove in the head---NEVER had a blowout--this on gas powered engines

In our top fuel/funny car engines the wire groove was cut in the heads by Donovan--no grooves in block

On the Donovan Aluminum heads they were machined for a copper wire around the chamber to match the sleeve and used no gasket at all except for some rubber orings around water and oil passages

Jerry

a copper head gasket and a steel and even a composit can be used over . have seen it done and i would not do.only on the copper . but had a customer re used his 1017 felpros over and over .the big thing would be to mark it on a v8 you want them going on the same bank .but on your 6 you should be ok .but if you cut the block deck or head or both buy a new head gasket .this is a big deal for me every engine i build i tru deck and mill the heads i just not that much .and i like them flat and smooth i turn the feed down very slow so i get them were i want the finsh

pat i have reused head gaskets on a engine part way through the season but when i build a fresh or new engine i use a new gasket, i find that there is no gamble in reusing a head gasket if it is not damaged disassembling the engine ,on my high comp engine (11.4/1) i never had a head gasket problem. as for the blown engine i have now i reused the steel gasket twice with no failure, i do what to get a more reliable copper setup and get this setup to the point were it get fresh`n up at the end of each season with no damage. with a stock or mild street built slantsix if the head gasket looks good it can be reused.

yep like i said have seen it done just do not do it gaskets are not that much but if i was at the track i would do it. i have seen main rods and cam bearings come out of 1600+ hp blown engine and go in other engines and seen moly rings sets come out get reuse in fresh bore out engines. i just do not play this game . never said it could not be done i seen just about every thing that they say should not be done

Many thanks for your input, Terry and Pat. You're telling me just what I want to hear.

The stainless gasket goes back in the engine. If you two guys say it should be OK to re-use it, then that's plenty good enough for me.

Jim

good luck and have fun with slanter

i have the engine together and running on the test stand, hope everything stays together, the new base pan and belt drive seem alright, i have a link to youtube hope it works. http://.www.youtube.com/mchafe100 can`t seem to get this to work , anybody help!!

just another update, so far i have gone 11.40et @ 115.45mph with 1.54 60ft. i have the 2/600vac holleys the timing is locked at 15degs and i am using supreme gas and a water injection system. the car is working well but i am still having head gasket trouble. the steel gasket with adhesive/ sealant spray works longer than composite gaskets. i will have to o-ring the block over the winter it`s seem to be the only fix. the steel gasket is blowing in the water jacket and blowing coolant the composite gaskst would egg shape and blow into the lift bore area.she has come along way and getting close to what i want to run.

Originally Posted by terrylittlejohn

just another update, so far i have gone 11.40et @ 115.45mph with 1.54 60ft. i have the 2/600vac holleys the timing is locked at 15degs and i am using supreme gas and a water injection system. the car is working well but i am still having head gasket trouble. the steel gasket with adhesive/ sealant spray works longer than composite gaskets. i will have to o-ring the block over the winter it`s seem to be the only fix. the steel gasket is blowing in the water jacket and blowing coolant the composite gaskst would egg shape and blow into the lift bore area.she has come along way and getting close to what i want to run.

you need a plate gasket if you can find one the deck and head will have to be dead flat or look at SCE ICS TITAN or just O ring the stock composite will just have ring to seal and will move out with no steel to hold them from moving under a load

it`s been a long while but i feel after all the advise and input an update is needed. i`m still at it, i have the tune-up almost worked out.first the engine-slantsix is .080 over bore (3.48") the valves intake 1.70" ex 1.44" swirl polished stainless full port and polish,compression was drop to 7.5to 1, the carbs are 2x450holleys, block was o=ringed and huskey .042 cooper gasket.i removed the power valves and jetted carbs with #70`s and a cooling mist water injection, it really works. timing was locked at 20degs.started shifting at 5500rpm.i have finially been able to get some full passes. i put a camera in the car and now i think i am over geared looking at the video shift light i coming on at half track not before mph light,my best time with these changes is 11.52et@115mph,but the boost is climbing to 12psi, with the same blower drive ratio, this is puzzling i took the last two yrs to fix everything that i was having problems with and it was worth it ,the engine is strong and i now can make changes so i see improvements, i have 4.30`s instead of 4.88`s for this weekend i think this will help my et`s.will thanks to all . http://youtu.be/SuAe2t-WUaQ http://youtu.be/eSk5b_TJ-b8

Good to hear from you,Terry! It's been a while.

I have wondered about your engine project. Thanks for the update.

I went to an estate sale a few weeks back and I looked in the garage because the notice about the sale mentioned tools. The good stuff was gone but there was an early slant six leaning against one wall. It obviously has not been torn down. I inquired about it and the lady in charge said "Take it, a scrap metal guy is coming to pick it up along with some other stuff".

I don't know anything about the engine. I really don't need it but I grabbed it anyway. I don't know if it is a 225 or a 170 but either way I'm excited about getting to play with it.

Keep us informed about the project.

Jim