BBM Indy valve train advice needed.

Posted By: MMiller

BBM Indy valve train advice needed. - 01/22/13 04:52 AM

I have a pair of Indy Aluminum cylinder heads on a 470" roller cammed engine. I cannot use the aluminum heads due to class rules, and have some Max Wedge Replacement heads CNCd waiting to go on. I'm planning on taking the heads to a swap meet this weekend to try and sell them to buy other parts for my pulling truck.

Should I keep the pushrods and the Indy rockers and run them a season on my iron heads? Or should I sell them with the heads and move onto purchasing some Hartlands or T&Ds. The motor was not ran hard before and seems in good shape. I will likely be turning this motor 72-7500 rpms(maybe more) in a 4wd pulling truck. I'm on a budget and hope the cylinder heads being sold will help me buy more axle parts, I need to regear both front and read diffs, plus spool rear, locker front, and some axle shafts. If I sell the Indy rockers, I will need to put money into some more rockers and pushrods. Engine currently has a roller cam in it, the specs are not in front of me.

Thanks guys.
Michael

Posted By: Cab_Burge

Re: BBM Indy valve train advice needed. - 01/22/13 04:58 AM

If the Indy parts will fit onto the new heads and if the rockers will take the pressure of the new valve springs why not use them

If no to either of those qualifiactions by all means sell them and buy better ones like you want

BTW, which set of Indy heads, which size intake ports, are you selling and for how much

Posted By: mopar_to_ya

Re: BBM Indy valve train advice needed. - 01/22/13 05:30 AM

Through my experience, I ran Indy 440-1's, and was told to upgrade to Harland Sharpes, and very glad I did. But I did run the pushrods from Indy, and 45-50 runs they started breaking, costing me two races in a row and a nice points lead, which I did regain at the last race,lol. I switched to Smith Bros and never had an issue after that. A friend of mine broke quite a few rockers before switching to Harland Sharpes and not having any trouble since.
Hope this helps

And for the record, I AM NOT bashing Indy by no means, I have lots of Indy stuff, and am happy
with what I have run!!!

Posted By: sasquatch

Re: BBM Indy valve train advice needed. - 01/22/13 06:43 AM

The Indy length pushrods are to long for your iron maxies. If you are running a roller I would upgrade to some Harlands or T/Ds. The exhaust rockers would work but the intakes may require a bit of grinding for clearance if they are the offset 440-1s. If they are the sandard offset they should fit your maxies ok but may require different side shims.
Todd

Posted By: fourgearsavoy

Re: BBM Indy valve train advice needed. - 01/23/13 10:52 PM

Quote:

I have a pair of Indy Aluminum cylinder heads on a 470" roller cammed engine. I cannot use the aluminum heads due to class rules, and have some Max Wedge Replacement heads CNCd waiting to go on. I'm planning on taking the heads to a swap meet this weekend to try and sell them to buy other parts for my pulling truck.

Should I keep the pushrods and the Indy rockers and run them a season on my iron heads? Or should I sell them with the heads and move onto purchasing some Hartlands or T&Ds. The motor was not ran hard before and seems in good shape. I will likely be turning this motor 72-7500 rpms(maybe more) in a 4wd pulling truck. I'm on a budget and hope the cylinder heads being sold will help me buy more axle parts, I need to regear both front and read diffs, plus spool rear, locker front, and some axle shafts. If I sell the Indy rockers, I will need to put money into some more rockers and pushrods. Engine currently has a roller cam in it, the specs are not in front of me.

Thanks guys.
Michael

You do know that Indy makes cast iron heads also right???
Maybe check out some of the Indy dealers for a possible trade-in value for your MW heads

Give Nick a call at www.compu-flow.com

At least all your other parts will work

Gus

Attached picture 7558803-savoyburnout.jpg

Posted By: MMiller

Re: BBM Indy valve train advice needed. - 01/24/13 04:38 AM

Quote:

You do know that Indy makes cast iron heads also right???
Maybe check out some of the Indy dealers for a possible trade-in value for your MW heads

Give Nick a call at www.compu-flow.com

At least all your other parts will work

Gus

I have found the need to clarify some things. Class rules state OEM Iron heads. I already have some Max Wedge Replacement heads with correct casting numbers, ported, and assembled. I had them before buying an engine with these aluminium heads on them. The engine has the correct pistons, a decent camshaft and a ton of good parts that I would have spent a bunch more money on building myself.

I do appreciate all the advice, its all been read and tossed around.

Michael

Posted By: RemCharger

Re: BBM Indy valve train advice needed. - 01/25/13 06:37 PM

I ended up tracking down some crane offset intakes that were made just for this application. Thats what I would recommend, rather than stock, or indy offset. Other options would be to get a hold of dvorak machine,, but thats probably overkill for your setup.
I just wasn't comfortable with running rockers bandaided up for high rpm use.

Posted By: mikeysmopars

Re: BBM Indy valve train advice needed. - 01/25/13 06:53 PM

Quote:

My
Through my experience, I ran Indy 440-1's, and was told to upgrade to Harland Sharpes, and very glad I did. But I did run the pushrods from Indy, and 45-50 runs they started breaking, costing me two races in a row and a nice points lead, which I did regain at the last race,lol. I switched to Smith Bros and never had an issue after that. A friend of mine broke quite a few rockers before switching to Harland Sharpes and not having any trouble since.
Hope this helps

DITTO!

And for the record, I AM NOT bashing Indy by no means, I have lots of Indy stuff, and am happy
with what I have run!!!