HEADS????
Joined: Feb 2006
Posts: 20
From:
RE: HEADS????
I love my AFR 205's ( Air Flow Research ). GREAT flow numbers for the money. 2.08 intake / 1.6 exhaust valves, 58cc combustion chamber, and over 300cfm on the intake runner at a mere 0.550 lift.
Definitely my suggestion.
Definitely my suggestion.
Thread Starter
5th Gear Member
Joined: Nov 2005
Posts: 2,450
From: NY
RE: HEADS????
what exactly do those numbers mean ? i hard they are one of the best brands. It should be ok to go with them even though everything else i have is edelbrock? i know it dosent matter but will edelbrock stuff work better with edelbrock stuff?thanks again guys! I am so glad I didnt just throw money at something and buy it without asking first
4th Gear Member
Joined: Sep 2005
Posts: 1,925
From: AR
RE: HEADS????
ORIGINAL: StrongStang50
what exactly do those numbers mean ? i hard they are one of the best brands. It should be ok to go with them even though everything else i have is edelbrock? i know it dosent matter but will edelbrock stuff work better with edelbrock stuff?thanks again guys! I am so glad I didnt just throw money at something and buy it without asking first
what exactly do those numbers mean ? i hard they are one of the best brands. It should be ok to go with them even though everything else i have is edelbrock? i know it dosent matter but will edelbrock stuff work better with edelbrock stuff?thanks again guys! I am so glad I didnt just throw money at something and buy it without asking first
Joined: Feb 2006
Posts: 20
From:
RE: HEADS????
The AFR 205's are right around $1800 with valves / springs and are designed for a 351w block. If you're putting them on a 302 based block, you'll want to get the head adapters since the bolt holes for a 351w are 1/2" instead of 7/16" like the 302 block. The 58cc combustion chamber allows increased compression vs the standard 64cc 351w heads. Since the AFR's have 2.08" valves, make sure they will clear the valve reliefs in the pistons by calling the manufacturer. The 300cfm intake runner indicates how well the heads flow at a 0.550" valve lift. You can find flow numbers for Edelbrock on their site to compare them to the AFR's. Major difference between them.
Good luck!
Good luck!
Pro. B.S. caller outer
Joined: May 2004
Posts: 9,644
From: IL
RE: HEADS????
ORIGINAL: fordfanboi
The AFR 205's are right around $1800 with valves / springs and are designed for a 351w block. If you're putting them on a 302 based block, you'll want to get the head adapters since the bolt holes for a 351w are 1/2" instead of 7/16" like the 302 block. The 58cc combustion chamber allows increased compression vs the standard 64cc 351w heads. Since the AFR's have 2.08" valves, make sure they will clear the valve reliefs in the pistons by calling the manufacturer. The 300cfm intake runner indicates how well the heads flow at a 0.550" valve lift. You can find flow numbers for Edelbrock on their site to compare them to the AFR's. Major difference between them.
Good luck!
The AFR 205's are right around $1800 with valves / springs and are designed for a 351w block. If you're putting them on a 302 based block, you'll want to get the head adapters since the bolt holes for a 351w are 1/2" instead of 7/16" like the 302 block. The 58cc combustion chamber allows increased compression vs the standard 64cc 351w heads. Since the AFR's have 2.08" valves, make sure they will clear the valve reliefs in the pistons by calling the manufacturer. The 300cfm intake runner indicates how well the heads flow at a 0.550" valve lift. You can find flow numbers for Edelbrock on their site to compare them to the AFR's. Major difference between them.
Good luck!
Joined: Feb 2006
Posts: 20
From:
RE: HEADS????
ORIGINAL: JD1969
This is a classic case of "what I bought works for me so it's the best for everyone".
This is a classic case of "what I bought works for me so it's the best for everyone".
The question was, "What's the best kind of heads", so I answered honestly that I like my AFR's and would suggest AFR as the best kind of heads. Then I was asked, "What exactly do those numbers mean", so I answered that as best I could off the top of my head. He never stated desired power numbers, so all that can be done is to answer the questions as asked. If the question was, "What's the best kind of heads for my 347 stroker application to build 300hp", the answer would be different.
For all I / or you? know, "UNLESS he goes with a huge cam and big gears" could be applicable.
Thread Starter
5th Gear Member
Joined: Nov 2005
Posts: 2,450
From: NY
RE: HEADS????
thanks alot. Im trying to learn from people who have already been threw this stuff.. I like to spend money, buy the key is spending it once and doing it right... Thanks Again! If there is anything I can help you guys with please by all means pm me!