509 or 540 BBC ?
Pro
Joined: Jan 2004
Posts: 535
Likes: 1
From: Darwin, Australia NT
Originally Posted by pef427
Jim had told me about a good article recently on the 509's. I don't recall which mag...maybe he can chime in.
On a buget (need a tremec first) so will reuse GM crank and buy a Gen VI 502 block, H beam rods and 10.2 srp pistons. Have 320 ProToplines, 2" Doug Thorey headers and 3" exhaust. As the car will only ever run street tyres and original rear I figure I dont need any more cubes.
Drifting
Joined: Aug 2004
Posts: 1,883
Likes: 124
From: Lubbock TX
Tell ya what, Jim. Ride on up here in that monster of yours, take me and each of my kids for a ride and I'll split freight shipping back to you. I'll try to twist the arms of my buddies at SDPC - who knows, we may be able to get one drop shipped directly to you.
I'd ship it Ryder, but you know their prices are as high as giraffe nookie!
I'd ship it Ryder, but you know their prices are as high as giraffe nookie!
Drifting
Joined: Aug 2004
Posts: 1,883
Likes: 124
From: Lubbock TX
simmo, you might want to check prices of the 502 block against others like the Sportsman Bowtie. SDPC shows the 502 at $1629 and most don't recommend boring them past 4.530. The Sportsman Bowties can go to 4.600, maybe more. I've seen several at that bore with no problems.
Race Director
Joined: Jan 2000
Posts: 13,025
Likes: 2,266
From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
I like it that we aren't cheap!! Helps Jim have his toys!!
JIM
JIM
Burning Brakes
Joined: Dec 2004
Posts: 1,020
Likes: 1
From: Nederland Texas
Originally Posted by Gumbo
Hmmm (counts pennies in piggybank)
P-money, Jim: when do we leave?
-D
P-money, Jim: when do we leave?
-D
We can haul 427Hotrod in race-mode so he can give Disneyland rides to the kids...big and small. i could also bring Vetmaniac his carb. Let me know.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
5 Best & 5 Worst Corvette Daily Drivers
Joe Kucinski
The Headlights of Every Corvette Generation Explained
Joe Kucinski
5 Best & 5 Most Overrated Corvette Track Packages of All Time!
Joe Kucinski
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
Race Director
Joined: Jan 2000
Posts: 13,025
Likes: 2,266
From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
Now THAT's a REAL Merlin!!
I like working with the Confederate Air Force on planes....only thing cooler than an Allison or a RR Merlin...is ROUND motors!!
JIM
I like working with the Confederate Air Force on planes....only thing cooler than an Allison or a RR Merlin...is ROUND motors!!
JIM
Safety Car
Joined: Dec 2004
Posts: 4,071
Likes: 0
From: San Diego CA
Originally Posted by 427Hotrod
Now THAT's a REAL Merlin!!
I like working with the Confederate Air Force on planes....only thing cooler than an Allison or a RR Merlin...is ROUND motors!!
JIM
I like working with the Confederate Air Force on planes....only thing cooler than an Allison or a RR Merlin...is ROUND motors!!
JIM
How many quarts of oil do you think that thing takes when you change it?I've seen a pic of a 78 with one of those shoved in it. I wonder how the hell you drive with 900hp and 16 cylinders...
Burning Brakes
Joined: Dec 2004
Posts: 1,020
Likes: 1
From: Nederland Texas
Originally Posted by Kalway
How many quarts of oil do you think that thing takes when you change it?I've seen a pic of a 78 with one of those shoved in it. I wonder how the hell you drive with 900hp and 16 cylinders...
That thing looks like it shoots .50 cal's.
Racer
Joined: Mar 2000
Posts: 352
Likes: 0
From: Frisco, TX
Patrick, Jim,
When is the roadtrip?
Dixon, that block has the correct "color" to indicate very high nickel content, which happens to be a very good thing for reducing wear on the engine and a very bad thing for inducing wear on your machinist's tools. Machine shops that have never experienced an Aftermarket Merlin, Dart, etc Iron block tend to get a little pissed off the first time they deal with them. The machines have to run slower.
That GM block is one very sexy looking piece. I liked the casting quality of my Dart over my Merlin II, but I think I like this new GM one even better. The price looks hard to beat for what you are getting. Time to break that piggy bank.
When is the roadtrip?
Dixon, that block has the correct "color" to indicate very high nickel content, which happens to be a very good thing for reducing wear on the engine and a very bad thing for inducing wear on your machinist's tools. Machine shops that have never experienced an Aftermarket Merlin, Dart, etc Iron block tend to get a little pissed off the first time they deal with them. The machines have to run slower.
That GM block is one very sexy looking piece. I liked the casting quality of my Dart over my Merlin II, but I think I like this new GM one even better. The price looks hard to beat for what you are getting. Time to break that piggy bank.
Drifting
Joined: Aug 2004
Posts: 1,883
Likes: 124
From: Lubbock TX
Y'all come on up. We're flat and dry but at least we have a Hooters. Not bad for the second most conservative city in the nation. We have a local strip and I know the owner very well, I can probably get you a few runs in that '67 as a favor.
Vetmaniac, if you liked the difference between the Dart and Merlin, you're gonna love the CNC blocks - they're absolute works of art. My machinist said he's gotten .006 - .008 tool drift towards the bottom of the cylinders when boring aftermarket blocks and that's on a Rottler CNC Machining Center. Our local shop has a guy that's an absolute expert at honing these to get round, straight cylinders but it takes much more time than when working on the much softer production stuff. He does most of his work on Dart Big M and the new Brodix aluminum blocks and his experience really helps. I'd like to take you guys by the shop, may get lucky and get to watch a few dyno tugs on a 665. Lordy, those things make the power!
Vetmaniac, if you liked the difference between the Dart and Merlin, you're gonna love the CNC blocks - they're absolute works of art. My machinist said he's gotten .006 - .008 tool drift towards the bottom of the cylinders when boring aftermarket blocks and that's on a Rottler CNC Machining Center. Our local shop has a guy that's an absolute expert at honing these to get round, straight cylinders but it takes much more time than when working on the much softer production stuff. He does most of his work on Dart Big M and the new Brodix aluminum blocks and his experience really helps. I'd like to take you guys by the shop, may get lucky and get to watch a few dyno tugs on a 665. Lordy, those things make the power!
