Alright guys, I've spent the last couple of days trying to find possible candidates for my build. I'm aware of all the obvious options such as PRC 5.3 stage heads, Trick Flow's 205's and the various sending my heads off options for Cnc porting, but I'm looking for an actually aftermarket cast head for the deck thickness and of course the better flow characteristics. I just don't like the idea of the stock heads lifting haha. The aftermarket heads I did list all raise your compression so they would definitely be a no go. My current set up is using Wiseco -2cc valve relief 3.800 forged Pistons, Callie's 6.125 rods and stock crank (of course balanced assembly). I currently have the stock 799 heads held down with arp studs with pac 1218 springs and a 3 angle valve job and my current compression is around 9:8. I plan on running up to 20 lbs of boost and I'll be running stock48's triple 12. The main problems I'm running in to is of course valve shrouding if I go with a ls1 aftermarket head and my bore being too small. I've called TEA, Trick Flow, AFR and they've all said the same thing (we don't have anything for your bore in cast as an option) I did however stumble across WCCH and the do have a set up for Edelbrock 215 ( they're Cnc program) but the numbers aren't too much better than the 799. Edelbrock does offer an as cast option that is identical to the stock 243 head, it just has to go through the the Cnc process so my hands are tied. I'm pointing towards the Edelbrock as cast set because I'll be able to make them into what I want, but if there is a aftermarket head that I can use instead, I'll gladly go with that option. I also read somewhere that Trick Flow's 215 was used on a 5.3 without any problems but I can't seem to find the article now. But any info or help would be highly appreciated. Push come to shove, I'll just sale all my 5.3 stuff and grab a LSA block and just play with a 4.065 bore and then there will be no more excuses haha. Thanks for reading guys.

 

I don't think the Edelbrock 215cc head would work on a small bore, It uses a 2.055 intake/ 1.60 Exhaust valve. You would need the small bore Eldelbrock 200cc 4.8/5.3 head that Richard does.

WCCH also has a small bore ALL PRO head but it is not listed on there site. You would need to contact them directly.

You other option would be Tony Mamo of Mamo Motorsports. He is developing a high flow head for the small bore applications using an AFR casting that is nearly finished and ready to be sold to the public.

 

Awesome! Thank you, I'll look into it.

 

Yup Tony Mamo has some small bore heads that flow awesome in the works.