by mldeolde » Sun Oct 12, 2008 11:37 pm
here is the latest pics of my bowtie block long rod 345 cu in motor for the IMSA. latest valve train fiasco- this isthe secound shaft system purchased for this enginewith assurences it would work on my application of bowtie block and a set of BRODIX spec heads based losely on the Track -1 castings. the first set i got, an off shore design had zero offset on the intakes so there was no way they would work. the secound set i just got from Comp Cams isn't right eighter. can't believe it. i asked for specs on this set to verify the offsets of the intakes especially because my ruff measurements indicated an .350 off set was in the ballpark for the intakes. Comp Cams told me to double check with Brodix because they said thier set has .170 offset on both the intakes and exhaust. talked to TECH dept at Brodix aand gave them every number on the heads to help verify thier specs. they told me the .170 intake offset would work but they prefer a .250 intake offset. given that info i bought the set and test mounted them on the head on the block. useing the Comp Cams pushrod check tool which is a 5/16 inch rod it rubs, tho just barely, on the side od the intake ports but the rod also hits even worse on the top of the head area where the pushrod passes thru. what a deal. two of the biggest players in the game both agree that the setup will work and both wrong. some thing fishey here. i'm bigining to think that the heads have a different port configuration than the numbers seem to indicate. the spaceing seems to indicate that the -10 Brodix heads have the port configureation that i have and Brodix says the will bolt on my heads and work with thier.450 intake and 0 exhaust offsets but then again they told me the other set would work too. going to take the engine to one of my brothers friends engine shops to get a secound opinion on weather or not to buy a -10 shaft setup or something else. my brother says this is the most modifacations he has ever had to do to a small block chevy-ever-!!!!!!!!!!!!!
You do not have the required permissions to view the files attached to this post.