X546 Bowtie Block?
- Thread starter V-loci-T
- Start date
Windedv6
Ty n 10s
Re: X546 Bowtie Block?
That is the one that they spread to bores wider. They never made any heads for it. Send it it me and I will get rid of it for you.
Seriously, you will need to do some measuring as I have seen some differences with the Bowtie blocks. Check the "Cam to Crank centerline" as well as the cam journal size to see if it is the same as stock. Circle track guys were know to alter this for clearance reasons and GM may have experimented with it. Check the deck height also. There was several variations of the dry sump setups as well. I had a NASCAR v6 block recently that had some differences. Among several differences it had the large dia Ford style lifter bores. These were considered an improvement over the standard SBC bore size. Is it 4-bolt main setup? Splayed centers? Is the front and rear cap four bolt also? Is it a CNC'ed finished block? Does it have a full webbing thickness above the first cap or is there a cavity behind there? Any pics available.
John
V-loci-T said:
That is the one that they spread to bores wider. They never made any heads for it. Send it it me and I will get rid of it for you.
Seriously, you will need to do some measuring as I have seen some differences with the Bowtie blocks. Check the "Cam to Crank centerline" as well as the cam journal size to see if it is the same as stock. Circle track guys were know to alter this for clearance reasons and GM may have experimented with it. Check the deck height also. There was several variations of the dry sump setups as well. I had a NASCAR v6 block recently that had some differences. Among several differences it had the large dia Ford style lifter bores. These were considered an improvement over the standard SBC bore size. Is it 4-bolt main setup? Splayed centers? Is the front and rear cap four bolt also? Is it a CNC'ed finished block? Does it have a full webbing thickness above the first cap or is there a cavity behind there? Any pics available.
John
Re: X546 Bowtie Block?
I will measure everything out this week and see what I find. I have measured the bores before and it is still at 4". Its a dry sump block and has billet caps on all of them. The centers are splayed and the outers are the standard two bolts. It has had some work done to it and it has been run before(some wear in the cylinders). It has a screen epoxied in the valley and has also had deck plugs installed in the block-to-head coolant passages(common mod on a lot of race motors I have seen). I have a set of bowtie 18's that I will set on it tonight to see if the bore spacing is different. I will soon be selling everything that I have. I just want to know what it is so I can disclose what I have when I sell it. Thanks for the help. I appreciate it.
I also have another bowtie block that i will compare it to. It is a wet sump though.
I will take a lot of pictures tonight.
I will measure everything out this week and see what I find. I have measured the bores before and it is still at 4". Its a dry sump block and has billet caps on all of them. The centers are splayed and the outers are the standard two bolts. It has had some work done to it and it has been run before(some wear in the cylinders). It has a screen epoxied in the valley and has also had deck plugs installed in the block-to-head coolant passages(common mod on a lot of race motors I have seen). I have a set of bowtie 18's that I will set on it tonight to see if the bore spacing is different. I will soon be selling everything that I have. I just want to know what it is so I can disclose what I have when I sell it. Thanks for the help. I appreciate it.
I also have another bowtie block that i will compare it to. It is a wet sump though.
I will take a lot of pictures tonight.
Last edited:
Re: X546 Bowtie Block?
Well I finally got around to taking some pictures. I haven't really measured anything as of yet. The bore spacing is correct. I tried the 18's on the block and I also tried the gm performance head gasket on. The bores are right around 4.125. I dont know why I thought they were at 4". It seems to have some oiling mods to the dry sump setup from what I can tell. I alos have some pictures of the heads which have alot of work done to them(ports raised) and also some jesel rockers. The heads flowed around 340 @ .600 lift if I remember correctly. I had one of the ports flowed when I first bought everything. I will be looking to get rid of everything I have in the near future. If anyone is interested let me know.
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts005.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts006.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts007.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts008.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts009.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts011.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts012.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts013.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts016.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts017.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts018.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts001.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts002.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts003.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts004.jpg
Well I finally got around to taking some pictures. I haven't really measured anything as of yet. The bore spacing is correct. I tried the 18's on the block and I also tried the gm performance head gasket on. The bores are right around 4.125. I dont know why I thought they were at 4". It seems to have some oiling mods to the dry sump setup from what I can tell. I alos have some pictures of the heads which have alot of work done to them(ports raised) and also some jesel rockers. The heads flowed around 340 @ .600 lift if I remember correctly. I had one of the ports flowed when I first bought everything. I will be looking to get rid of everything I have in the near future. If anyone is interested let me know.
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts005.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts006.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts007.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts008.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts009.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts011.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts012.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts013.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts016.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts017.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts018.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts001.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts002.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts003.jpg
http://i122.photobucket.com/albums/o245/vlocit/bowtieparts004.jpg
