Do they bolt together with no problems? Or is any machining required since the head is LT1 based. Thanks,
Randy

 

Not really advanced tech but to answer your question, the heads are designed for the current LTx engine and it doesn't matter if it's a LT1 or a LT4 intake. Pick your color.

I'd recommend you have the TF heads ported or instead have your existing heads ported. Mine as cast only flowed 260/177 @ .600 which is easily beat by your average LT1 port job.

 

I already had Lloyd work them to 295/230. I was just wondering because the LT4 intake requires LT4 heads and these work with a LT1 intake. I know its not to advanced but I dont think many LT1's are running TFS heads yet. I only went to the TFS heads because of their thicker deck and lower compression as they are going on a D1 charged 383. Also they are not that much more then nice full port LT1 heads. Those go for what $1800-2000. I got my TFS heads for less then $900 then put $400 more into porting and $700 for nice beehive springs, bigger valves, Ti locks etc. So thats $2000 then I sold my LT1 heads for 150, bringing my total investment to 1850. $1850 for thicker heads with more material that flow more then the best LT1 casting ever would, AND they are nice and shiney .