WebMar 30, 2006 · 335 Series- 5.8/351M, 6.6/400, 351 Cleveland - 4-bolt 400 - Well, here's a start of a new project. ... Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > 335 Series- 5.8/351M, 6.6/400, 351 Cleveland > ... Roger : The 4 bolt mains caps are an after market item to strengthen the bottom of the 351M/ 400 engine. … WebDec 22, 2024 · The 400 was used in many applications over the years. The 400 replaced the Ford 390, and it was designed for good acceleration for medium to heavy vehicles. The …
Pontiac 455 OEM 2 Bolt to 4 Bolt Straight Billet Steel Main Caps
Web2 days ago · Find many great new & used options and get the best deals for ARP For Chevy Rocker Stud Arm Kit 4.3L V6 Vortec 2 pc at the best online prices at eBay! Free shipping for many products! WebA 4-bolt main is arguably the better option for high-power engines. The main caps are held by 4 bolts instead of two in a 2-bolt main. Your decision on which type of main block to choose depends on the power … flea\\u0027s tw
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WebDec 2, 2024 · The 400’s deck height is 10.297 inches compared with the 351C’s lower 9.206 inches to accommodate the longer 4.000 inch stroke. (Image/Jim Smart) The 400 has larger 3.000 inch main journals compared with the 351C’s 2.750 inch mains. Ford did not do a 400 with four-bolt main caps. WebFeb 6, 2024 · Joined Jan 13, 2007. 22,070 Posts. #3 · Feb 3, 2024. Agree ^^^. 450-480 HP in a stock 4 bolt block is about it, and even then you will have a 1 in 10 failure rate for a thin cylinder wall that cracks in less than 5000 miles. Anything above that is juat a gamble, some guys will push a 2-bolt with aftermarket splayed main caps to 600 HP but you ... WebFind many great new & used options and get the best deals for Pontiac 455 OEM 2 Bolt to 4 Bolt Straight Billet Steel Main Caps at the best online prices at eBay! Free shipping for many products! cheese pastry filling