When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I didn't know if the original poster might have thought that photo was a 351W which is why I mentioned it. Plus I wanted to provide him with another simple distinguishing feature to determine 302 vs. a 351W. When referring to block deck heights, 3/4" is a lot.
Even though 302 specific only headers will bolt to a 351W (with maybe some exception of the P-heads and aftermarket performance heads) I wouldn't go that route. A 302 specific only header will often have smaller diameter tubes and shorter tube lengths than a 351W specific header. Sanderson makes the same headers to fit both a 302 and 351W. Fitment is probably more a priority for that situation than application specific.
I'm intrigued as to how you guys can tell if it's a 302 or 351 by that first pic ?
You can't actually see if it has the taller deck by that pic ?
Is there another way to identify them , i've always gone by the taller web behind the distributor on a 351 .
I'm intrigued as to how you guys can tell if it's a 302 or 351 by that first pic ?
You can't actually see if it has the taller deck by that pic ?
Is there another way to identify them , i've always gone by the taller web behind the distributor on a 351 .
The intake is wider. 302 is barely wider than the carburetor. It helps, too, that we've been looking at them for 40+ years.
Here is a pic of my 40 coupe with a 351W...I ended up removing the valve cover on the driver's side and cutting off the back corner to gain clearance from the firewall. Those taller decks can cause headaches.
Even though 302 specific only headers will bolt to a 351W (with maybe some exception of the P-heads and aftermarket performance heads) I wouldn't go that route. A 302 specific only header will often have smaller diameter tubes and shorter tube lengths than a 351W specific header.
I also say this is not good info, I worked at a speed shop from the late 70's through the 80's selling and installing a lot of headers. The primary size for a header tube for both SBC and SBF is 1 5/8" tube. Yes there are other sizes available but 1 5/8" is the main stay in header tube size for the two major players and the others. Even Hooker Super Comps are 1 5/8" for a 351W (which is also the same header for a 302 in a early Mustang chassis along with several others.) The difference is fitment for the 351W in the chassis due to the wider engine. Like stated, the 1 5/8 tube, which is standard for either Ford engine will flow more than enough for even the hottest street engine and it sure beats the heck out of the restrictive stock manifolds. The thing that is most important when considering headers is fitment, if they don't clear your junk and bolt up, they ain't no good.
I also say this is not good info, I worked at a speed shop from the late 70's through the 80's selling and installing a lot of headers. The primary size for a header tube for both SBC and SBF is 1 5/8" tube. Yes there are other sizes available but 1 5/8" is the main stay in header tube size for the two major players and the others. Even Hooker Super Comps are 1 5/8" for a 351W (which is also the same header for a 302 in a early Mustang chassis along with several others.) The difference is fitment for the 351W in the chassis due to the wider engine. Like stated, the 1 5/8 tube, which is standard for either Ford engine will flow more than enough for even the hottest street engine and it sure beats the heck out of the restrictive stock manifolds. The thing that is most important when considering headers is fitment, if they don't clear your junk and bolt up, they ain't no good.
Sorry, I provided bad information in this thread. I'll be more cautious in the future as to what threads I respond to.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.
