Don Terrill’s Speed-Talk

Yeah looks good, I'd still want to see some split between intake and exhaust lobes though

Im pretty much with Knight on this , 108-107 Lsa and with 10:1 I would be at 232/236 @.050" . I built one for a friend building a VK Brock look alike , 355ci std manifold and quadrajet , ported heads and a solid flat cam 244/248 @ .050" , 10.7:1 , made 440hp , engine appeared completely st...

All good advice, my experience for what it is worth, is that every engine is a little different, and the only way to know is to just try them. I have not seen a lot of evidence that this one or that one works better. Most dual planes like at least a 2 inch open spacer, but single plane intakes it i...

What specific AJ engine is it? If its the version built by Aston its very different. A Jaguar guy I spoke with mentioned the exhaust cam is fixed and the intake is variable. Oil pressure moves it to the full advanced position. At idle and non-running it’s fully retarded and that’s how it needs to b...

#1, TDC Exhaust, (overlap) align cam so the intake is open slightly more than the exhaust? Does that make sense with a cam phaser in place? I have Chevy Lumina 3.4 DOHC engines. The cams are not keyed to the pulleys, but the cams have flats on the shaft that are held level on the cylinder head with...

Hi Guys not sure if anyone here is going to be able to help me with this one, I have a customer with an Aston Martin, it has an AJ V8 engine (very similar to a coyote). The cam gears are not keyd to the cams, there is a cam timing kit that locks the crank and cams in position for assembly but unfort...

How many guys out there have experience using a Holley sniper or sniper stealth on an engine dyno? I've been running my dyno for around 6 years now and average about 125 engines per year . I believe the dyno is very repeatable , but I'm finding when running engines with holley sniper kits the the en...

Just looking for different opinions here guys , I am about to build a customer 2 brand new road race engines , they WILL be based around a gen 1 SBC platform , 6L or 366ci is the capacity limit and 8500rpm is the rpm limit , has to run on unleaded race gas , will be efi and will have an IR intake ma...

Hi there Im trying to locate some odd sized valve stem seals for a set of heads I have here in my shop , the guide dimension O.D is .475" and it has an 11/32 valve stem, using triple springs and the spring i.d is .630" , the heads came in with seals on but were removed and thrown away as t...

I believe the biggest weakness is how thin the main webs are not the cap, you can bolt a steel cap or a girdle to it but if the web it self is not strong enough it will all come out the bottom as 1 piece, I have had steel caps front to rear from program engineering and a nice girdle and luckily we c...

I for one would be happy if it dis appeared, I guess its better than not checking at all but if I had a dollar for every time a customer has called to tell me that my machining is way off because the measurements he is getting with plasti gauge says so, to then only bring in and have me measure in f...

thanks for the replies everyone, so I did find someone that knew what they are, they were custom made for Joe Gibbs Racing and RCR for there cup engines years back , the ones that came out look ok so ill re use them for the moment but as soon as 1 bearing looks bad im going to have to convert everyt...

Hi guys I currently have 2 road race SBC's here at the moment, Bowtie blocks with SB2 cyl heads, they are roller cam bearing but they are not the conventional 55mm roller bearing sizes and im having a hell of a time finding replacements for them, they are 2.375 OD , cam journal size is 2.135", ...

If done correctly I thought it should be fine , I just put 8 darton flanged sleeves into a Cleveland and they are notorious for thin bores , I have fitted 8 iron repair sleeves to many a block and had no issues , I dont see there being an issue with the FE block , but at the end of it if the investm...

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