Is the Toyota 20R a good engine?
Is the Toyota 20R a good engine? The 20R is a good motor. The head flows better, stock, than a 22R head does, but the motor has less displacement. The "hot" mod was to put a 20R head on a 22R block, giving you more displacement and a high flow head. What is the difference between 20R and 22R? The 22R has a large displacement and a strong block, but its comparatively long stroke and restrictive head limit its use in high revving applications. The 20R head has straight ports, so can flow better than the 22R head, improving high...