Don Terrill’s Speed-Talk

OK thanks for the replys guys, our issues are with untouched factory heads so it looks like its a non issue.
Cheers

Hi, Just wanting some feedback on the LS rectangle port head casting number 0821. We have had a few come through the shop with dropped intake seats and was wondering if this is something that happens often and if so is their a pattern such as build date, overheat etc. If so what is everyone doing to...

Yes, its still shooting oil over the fender, not happy about it but will have to wait till I need to remove the intake for whatever the reason, maybe never! I'm just going to cross my fingers. Oil pressure at idle is 35 -40PSI hot with a stock volume and pressure mellings 800RPM, I hope it doesent e...

Thought I would update this thread, turned out some of the stock pushrods began to eat themselves at the rocker end. The pushrods began to erode at the oil hole and gradually grow until most of the tip had disapeared. This was the case with the non-rotating one, replaced all pushrods with new Manley...

I will follow this advice and inspect lifter face and lobe, if lobe looks good I will install the two new lifters and verify rotation on the starter, if all good will reassemble the intake and go from there. If I have to remove the cam then the job will involve dropping the gearbox and then removing...

After the break-in I removed the valve covers and started the engine and set it to idle, I had marked the pushrods with a sharpie pen and watched them while the engine idled, some rotated nice, some rotated slow and one sat in the same spot the whole time.

I'm very concerned about the non spinning lifter lobe, but it does only have 200 miles on it. Any tips on a fix not needing cam removal? New lifter with plenty of crown on the face? Any other ideas? The oil from the other lifter is like a hose out of the engine bay and onto the ground two feet away ...

ok, good to know, does that mean the metering disc under the pushrod cup is unseated or damaged?
I am thinking of lifting the intake manifold to replace one lifter which is not rotating, should i replace this over oiling one at the same time?

Hi all, I have the valve covers off my small block chevy for maintenance and noticed one rocker firing a column of oil out over the front gaurd and onto the ground while all other rockers flow oil as per normal. What is causing this and can it be fixed by adjusting preload etc or do i need to remove...

OK I've done this and will see how it goes later this week, thanks geoff2.

Reading the pertromix site only the ignitor 1 can be static timed, the 2 and 3 cant.
I'd like my fresh flat tappet rebuild to light off straight away, any advice or tips on how to get the timing good enough for the 30 mins at 2500RPM run time?
Thanks in advance
Adrian

Thanks for the replies, felt is looking like the winner

Hi all, I am building up a distributor and want to know what to replace the factory fitted sawdust packing which is above the top bushing I have seen others pack this cavity with grease but I feel something else might be more suitable. i dont really want to reuse the sawdust if possible. Any advice ...

thanks for the recommendations F-bird

I have everything except the cam. Just to confirm I have 2 different manifolds to choose from - Performer RPM Qjet, this looks like the one I will use as it has nice looking runners and plenum. The other manifold I can use is an iron z28 GM manifold with both square and spread bolt patterns,I think ...